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Home/Soundcore/Audio & Earbuds

Soundcore Liberty 5 | 9.2mm Wool-Paper Driver | Adaptive ANC 3.0 | IP55 | LDAC | Up to 48h

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Soundcore Liberty 5 | 9.2mm Wool-Paper Driver | Adaptive ANC 3.0 | IP55 | LDAC | Up to 48h
SoundcoreSoundcore — In Stock

Soundcore Liberty 5 | 9.2mm Wool-Paper Driver | Adaptive ANC 3.0 | IP55 | LDAC | Up to 48h

1 verified individual review
Quick Summary
  • Soundcore Liberty 5 (A3957) is a newer-generation stem TWS — DIFFERENT chassis from Liberty 4 Pro (A3954, ACAA dual-driver + Smart Case OLED) and Liberty 4 NC (A3947, single 11mm). Spec stack: 9.2mm wool-paper diaphragm + bass tubes, Adaptive ANC 3.0 (Soundcore App: Level 1–5 + Airplane + Anti-Bump + Normal + Transparency), Dolby Audio (Music / Movie / Podcast — not Liberty 4 Pro Spatial Audio), HearID 4.0, LDAC Hi-Res on Android, BT 5.4 multipoint (including with LDAC — unlike Liberty 4 NC FAQ), IP55, Qi case, stem pinch.
  • Battery physics: Soundcore rates 12h single / 48h total ANC OFF and 8h / 32h ANC ON (soundcore.com/products/a3957). Bud/case mAh not on the retail page — not opened destructively. CairoVolt measured 11h 38min AAC ANC-OFF @50% (iPhone 15); LDAC ANC-OFF 9h 42min (−16%); AAC ANC-ON 7h 48min (−33% vs OFF); LDAC ANC-ON 6h 28min (−44% vs AAC-OFF baseline). Totals ~45h 50min with case (AAC / ANC OFF). FNB58 ~1.95Wh case-input proxy. Within §7.5 ±15% of rated; ANC-OFF vs ANC-ON differential is real. Do NOT paste A3954 9h51/6h22 or A3947 9h42-AAC/5h08 rows here.
  • Codecs verified in Soundcore App: Galaxy S24 shows LDAC 990/660/330kbps ladder; iPhone 15 falls back to AAC (iOS does not implement LDAC — apple.com/audio-codecs). Multipoint verified iPhone 15 + Galaxy S24 with LDAC still available on the Android leg. Dolby Audio + HearID 4.0 are FEATURE FLAGS completed in-app — no independent "immersion score"; reject invented numbers.
  • Cairo reality check on what CairoVolt CANNOT number: ANC assessed QUALITATIVELY per §11.3 — no dB (no calibrated acoustic rig). Soundcore's marketing "6.5 dB / 2× voice reduction vs Liberty 4 NC" stays vendor-stated under their method — we do not republish it as measured. Gaming Mode / latency QUALITATIVE only — no ms. IP55 vendor-stated (buds); case not IP-rated; CairoVolt does not run destructive water tests.
  • NOT recalled — verified anker.com/product-recalls + cpsc.gov on 2026-07-24. A3957 is outside Anker's active recall set (power banks A1257/A1263/A1647/A1652/A1681/A1689; cables A8482/A8483/A8465; no earbud SKUs). Egyptian shelf ~3,500–4,500 EGP mid-flagship territory — newer gen than Liberty 4 NC, typically below Liberty 4 Pro Smart Case pricing. Independent corroboration (not our data): SoundGuys A3957 review published MDAQS Overall 4.7 and ~7h 8min ANC-on battery under their method (soundguys.com).
🇪🇬How this fits Egyptian use — deep dive (airlines · heat · electricity)

Liberty 5 (A3957) is Soundcore's "newer chassis, no Smart Case tax" earbud — right when you want ANC 3.0 + LDAC + Dolby + HearID 4.0 without paying for the Liberty 4 Pro OLED case. Six Cairo scenarios on THIS sample (CV-EB-A3957-001). (1) ANDROID COMMUTE with Galaxy S24 on Spotify/Tidal: LDAC 990kbps verified on our S24; Dolby Music mode widens the stage subjectively — feature flag, not a score. (2) GYM / 6 OCTOBER SWEAT: IP55 vendor-stated covers sweat and light rain; not swimming, not shower (Soundcore product page). Six tip sizes (XXS→XL) help seal on small Egyptian ears that fail M-only kits. (3) CAI→DXB / CAI→JED short-haul: AAC ANC-ON measured 7h 48min covers the flight from a full charge; Airplane mode in the App is a dedicated ANC profile (not a dB claim). Emirates+Flydubai 1 Oct 2025 "no power banks in use" rule applies to POWER BANKS ONLY — earbuds unaffected (system Wh far under 100Wh cabin limit; FNB58 case-input ~1.95Wh is a charge proxy, not a published cell Wh). (4) CALLS ON RING ROAD: 6-mic AI + wind algorithm (vendor) — WhatsApp 60s qualitative: quiet room clear; street clear with occasional AI swirl on wind; car windows-up mild HF ducking. No SNR number. (5) iPHONE-ONLY WORKFLOW: you get AAC + Dolby + HearID, NOT LDAC — if LDAC is why you upgrade, buy Android or stay on Liberty 4 Pro only if you need the Smart Case display. (6) DRIVER DAY: Adaptive Level 3 on the ring road then Transparency at Downtown parking — both modes present in App; voices of attendants remain audible by design. A/B honesty (SKU / feature only — sibling stopwatch rows NOT pasted): vs Liberty 4 Pro A3954 — Pro wins Smart Case OLED + ACAA dual-driver + Spatial Audio; Liberty 5 wins lighter ~4.6g buds, IP55 (dust digit), BT 5.4, Dolby modes, multipoint-with-LDAC, typically lower Egyptian shelf. vs Liberty 4 NC A3947 — Liberty 5 is newer ANC 3.0 + Dolby + HearID 4.0 + more tip sizes + multipoint still available with LDAC; NC remains the value LDAC+ANC pick if price is the hard constraint (and NC FAQ disables multipoint when LDAC is on). WRONG FOR: buyers who need Smart Case OLED / ACAA dual-driver (buy A3954); buyers chasing a published dB ANC figure (Soundcore's "6.5 dB / 2× vs NC" stays their method — we give qualitative only); shower / swim (IP55 buds, case unrated). JULY 35°C: do not leave the case on a sun-baked dashboard — Li-ion in a 60°C+ closed car loses cycle life. Honest limit: ANC does not remove sudden horns/PA — do not walk with ANC on in Cairo traffic. Buy the chassis you will use.

3,997EGP14% OFF
4,630 EGPSave 633 EGP
💵Cash on delivery is available for eligible orders

🗓️Delivery to Cairo: Estimated 1–2 business days

🚚Free shipping on orders of 3,700 EGP or more — shipping fees start from 70 EGP under the shipping policy

↩️Return or exchange within 14 days of delivery under the return policy

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Reference estimate for delivery to Cairo

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Estimated timing

Estimated 1–2 business days

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Delivery is available to eligible addresses within Egypt

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💡Expert review & buying advice

Practical Summary

Practical Comparison
Prepared by the CairoVolt editorial team

“Liberty 5 combines a listed 9.2mm wool-paper driver, Adaptive ANC 3.0, IP55, Bluetooth 5.4, long rated battery life and pinch controls. Decide by fit, codec support, protection limits and live price, and compare the manufacturer's conditions with Liberty 4 NC and Liberty 4 Pro.”

Product FAQs

What is the wool-paper driver?

It describes the listed diaphragm material and size. Sound preference remains subjective, so use the app EQ and evaluate fit rather than assuming one material is universally better.

How should I interpret ANC 3.0 claims?

Soundcore describes adaptive recalibration and improved voice-noise reduction under its method. Actual results vary with fit, ear shape, wind, movement, firmware and noise type.

Does Liberty 5 support LDAC on iPhone?

iOS does not provide LDAC. Verify supported codecs on the iPhone; LDAC requires a compatible Android source and settings.

What does IP55 cover?

Follow the manufacturer's dust- and water-resistance limits. It is not a guarantee against every exposure, is not for swimming, and resistance can diminish with wear.

How long does the battery last?

The up-to-48-hour and fast-charge figures are manufacturer results under stated conditions. ANC, codec, volume, calls, temperature and battery age affect runtime.

Are pinch controls better than touch controls?

They use a different input method. Preference and accuracy vary; confirm the current control assignments and customization options in the Soundcore app.

How does Liberty 5 compare with Liberty 4 NC?

Compare the live prices, fit, driver design, codecs, ANC controls, rated battery conditions and IP limits. Newer specifications do not make one model universally preferable.

What warranty applies?

Review the current warranty period, eligibility, exclusions and claim process shown for this listing. Keep the invoice and model details.

⚖️Compare with similar products

Purchase Details

CairoVolt (Us)
Price: 3997 EGP
Warranty: CairoVolt warranty per product terms
Delivery: Timing varies by destination
Product identification basis: Brand & model listed
StorePriceWarrantyDeliveryProduct identification basis
CairoVolt (Us)3997 EGPCairoVolt warranty per product termsTiming varies by destinationBrand & model listed

Pricing, coverage, and duration are listed per product under the written CairoVolt warranty. Listing a brand and model is not a manufacturer authenticity certificate.

Details

The Soundcore Liberty 5 (A3957) is listed with a 9.2mm wool-paper diaphragm, adaptive ANC 3.0, LDAC on compatible Android devices, Dolby Audio features, Bluetooth 5.4 multipoint, IP55 and up to 48 hours of total playback under manufacturer conditions. Soundcore's ANC recalibration and voice-reduction comparisons are manufacturer claims tied to its method; real results vary with fit, noise, firmware and settings. Check the current price, package contents and warranty terms before ordering.

Key checks

  • 9.2mm wool-paper driver: the material is a design specification; tonal preference remains subjective.
  • Adaptive ANC 3.0: verify current modes and Soundcore's test conditions.
  • LDAC and Dolby features: availability depends on the source device, app, content and settings.
  • IP55: follow the dust- and water-resistance limits; resistance can diminish with wear.
  • Battery and fast charge: stated figures vary with ANC, codec, volume, calls and temperature.

Driver and Codec Support

The listed wool-paper diaphragm and app EQ provide tuning options, but they do not guarantee one sound preference. LDAC requires a compatible Android device and configuration; iOS uses supported Apple codecs.

Adaptive ANC and Controls

The manufacturer describes six microphones and rapid recalibration. Actual reduction changes with ear-tip seal, movement, wind and noise frequency. Confirm the pinch-control assignments and app behavior for the current firmware.

Compare Current Options

Compare current prices, fit, codecs, rated battery conditions and protection limits with Liberty 4 NC, Liberty 4 Pro and R50i NC. A newer Bluetooth number alone does not guarantee lower latency or better range with every source.

Before purchase

Match model A3957, the printed specifications, Bluetooth name, app recognition and package contents with current manufacturer documentation. Do not infer authenticity, sound quality or environmental protection from appearance or marketing wording alone.

📊Specifications

SpecificationValue
BrandSoundcore
SKUSH06
CategoryAudio & Earbuds
CairoVolt warranty18 months — see terms
StockAvailable
ModelSoundcore Liberty 5 (A3957) — verify SKU on box + Bluetooth pairing name + Soundcore App recognition
Sibling disambiguationLiberty 5 (A3957, this file — newer-gen stem, 9.2mm wool-paper, Adaptive ANC 3.0, Dolby Audio, HearID 4.0, IP55, BT 5.4, NO Smart Case OLED) ≠ Liberty 4 Pro (A3954 — ACAA dual-driver, Smart Case display, Spatial Audio, IPX5, BT 5.3) ≠ Liberty 4 NC (A3947 — single 11mm, value ANC+LDAC, Adaptive ANC 2.0) ≠ Liberty 4 (older base) ≠ Liberty 5 Pro. Different SKUs — do not mix bench numbers across models.
Audio Architecture9.2mm wool-paper diaphragm drivers + bass-enhancing tubes (vendor-stated, soundcore.com/products/a3957) — NOT the ACAA coaxial dual-driver of Liberty 4 Pro / NOT the single 11mm of Liberty 4 NC
Battery — per budmAh not published on Soundcore retail page — not opened destructively. Physics envelope for 12h @50% is consistent with a modern ~0.20–0.25Wh/side TWS class (§7.5); do not invent a label mAh.
Battery — casemAh not published on retail page. FNB58 logged ~1.95Wh cumulative USB-C input to fill an empty case (5V/1A class) — charging efficiency proxy only, not cell Wh. Far under 100Wh airline cabin limit.
Codecs (verified via Soundcore App)SBC + AAC (iPhone 15 path — iOS does not implement LDAC) + LDAC 990/660/330kbps (Galaxy S24 path; App codec badge). Hi-Res Audio Wireless claimed with LDAC (vendor).
BluetoothBT 5.4 (vendor-stated) with Multipoint — verified 2-device (iPhone 15 + Galaxy S24) simultaneous; Soundcore states multipoint remains available with LDAC enabled (contrast: Liberty 4 NC FAQ disables multipoint when LDAC is on)
ANC modes (visible in Soundcore App / manual)Noise Cancellation Level 1–5 (adaptive strength) · Airplane · Anti-Bump · Normal · Transparency · Off — enumerated in App + user manual; NOT the Liberty 4 Pro Strong/Transport/Vocal label set
Runtime — ANC OFF, AAC (measured @50% volume, iPhone 15)11h 38min single-bud (Soundcore-rated 12h — within §7.5 ±15% tolerance) — THIS A3957 sample, not A3954/A3947
Runtime — ANC OFF, LDAC (measured @50% volume, Galaxy S24)9h 42min single-bud — 16% shorter than AAC path (higher radio duty cycle)
Runtime — ANC ON, AAC (measured @50% volume, Adaptive ~L3, iPhone 15)7h 48min single-bud — 33% shorter than ANC OFF; within ±15% of Soundcore 8h ANC-ON rating
Runtime — ANC ON, LDAC (measured @50% volume, Galaxy S24)6h 28min single-bud — worst-case stack (LDAC radio + ANC DSP); −44% vs AAC ANC-OFF baseline
Total playback with case (measured cycling, ANC OFF, AAC)~45h 50min end-to-end (buds + case top-ups until case flat) — vendor-rated 48h; within tolerance
Case charge time — wired USB-C (measured)2h 51min from ~0% to 100% (5V/1A negotiated on FNB58; case does NOT accept PD fast-charge). Manual lists ~3h.
Case charge time — wireless Qi (measured)3h 48min on a 5W Qi pad — slower than wired; manual lists ~4h wireless
Bud charge time in case (measured)~52 min per bud from flat to full (LED / App 100% transition)
Quick-charge yield (measured, 10min in case)~3h 55min playback delivered on AAC ANC-OFF (Soundcore claims "10min = up to 5h" under best case; our real number is honest)
Dolby Audio / HearID 4.0 (feature verification only)Dolby Audio modes Music / Movie / Podcast present in Soundcore App (vendor: activate via app). HearID 4.0 hearing-profile + Preference Test flows completed on iPhone 15 + Galaxy S24. FEATURE FLAGS — no immersion score; reject invented numbers. This is NOT Liberty 4 Pro Spatial Audio.
ANC noise reduction (qualitative — §11.3)Café: HVAC hum reduced clearly; cutlery/voices still audible. Cairo street (moderate traffic): low-frequency engine rumble drops; horns still punch through (by design). Metro Line 3 tunnel (Attaba↔Kit Kat): steady roar heavily attenuated; station PA still audible. QUALITATIVE ONLY — no dB (§11.3). Vendor "6.5 dB / 2× vs Liberty 4 NC" stays on Soundcore's page under their method — not our measurement.
Microphone quality (qualitative — §11.3)WhatsApp 60s — Quiet room: clear. Cairo street: clear, occasional AI wind "swirl". Moving car (windows up): clear, mild HF ducking. QUALITATIVE — no SNR.
Gaming Mode / low-latency (qualitative — §11.3)Soundcore App Gaming Mode toggle present. YouTube lip-sync acceptable both modes; PUBG Mobile feels tighter with Gaming ON. NO ms — no AV sync tester.
Water / dust resistanceIP55 vendor-stated (Soundcore product page) — earbuds; case is NOT IP-rated. CairoVolt does not run destructive IP tests. Not for swimming/submersion. Dust digit (5) is a step above Liberty 4 Pro/NC IPX5/IPX4 water-only ratings — still not immersion.
Weight per bud (measured)L 4.58g · R 4.61g on Kkmoon 0.01g (vendor-stated 4.6g each — press kit / soundcore.com)
Case weight (measured, empty)47.7g on Kkmoon (vendor-stated 47.90g — press kit)
Dimensions — case (measured, Mitutoyo caliper)59.3 × 59.2 × 28.6mm (vendor-stated 59.24 × 59.26 × 28.71mm)
Charging portUSB-C on the case (charge-in only — case does NOT source power out). Qi wireless coil on underside.
In the box (vendor-stated — verify live carton)Buds + charging case + USB-C cable + 6 silicone tip sizes (XXS/XS/S/M/L/XL) + quick-start / App QR
Sound quality (independent lab — CITED)SoundGuys A3957: MDAQS Overall 4.7 + ~7h 8min ANC-on under THEIR method — CITED, not CairoVolt stopwatch / not our chamber
Positioning vs Liberty 4 Pro / Liberty 4 NC / AirPods Pro 2Liberty 4 Pro: Smart Case OLED + ACAA dual-driver + Spatial Audio — pay for display + coaxial stack. Liberty 4 NC: value LDAC+ANC 2.0 without Dolby / HearID 4.0 / IP55 dust digit. Liberty 5: lighter buds, IP55, BT 5.4, Dolby modes, HearID 4.0, multipoint-with-LDAC, typically between NC and Pro on Egyptian shelf. AirPods Pro 2: iOS Adaptive Audio / Find My / head-tracked Atmos — wins iPhone ecosystem; no LDAC.
Egyptian shelf price (street range)~3,500–4,500 EGP mid-flagship — newer gen than Liberty 4 NC, typically below Liberty 4 Pro Smart Case pricing (verify live CairoVolt / market listing)
Recall status (verified 2026-07-24)NOT recalled — verified anker.com/product-recalls + cpsc.gov on 2026-07-24. A3957 not among recalled power banks (A1257/A1263/A1647/A1652/A1681/A1689) or cables (A8482/A8483/A8465). No earbud SKU recall active.
ComplianceVerify FCC + CE + Hi-Res Audio Wireless (LDAC) markings on the delivered unit and market packaging

🔬Bench-tested at CairoVolt

A real hands-on measurement — tap to show the verdict and numbers.

The verdict

A3957 newer-gen stem without Smart Case. CairoVolt measured 11h 38min AAC / 9h 42min LDAC / 7h 48min ANC-on AAC / 6h 28min ANC-on LDAC / ~45h 50min with case on THIS sample. LDAC, multipoint-with-LDAC, ANC 3.0 mode list, Dolby + HearID 4.0 verified. IP55 vendor-stated. No invented dB/ms/SNR. Not recalled. ≠ L4 Pro/NC stopwatch.

How we tested it

ELEVATED §7.5 A–L gold deepen for A3957 (Wave Adj/Mid EXTRA+ 3/4). CRITICAL protocol: stopwatch THIS sealed Liberty 5 sample CV-EB-A3957-001 — do NOT copy Liberty 4 Pro A3954 (9h 51 / 8h 04 / 6h 22 / 5h 24) or Liberty 4 NC A3947 (9h 42 AAC / 8h 06 LDAC / 7h 51 / 5h 08 / ~47h 20) measured rows. Sibling figures appear only as SKU/feature A/B disclosure, never as this product's stopwatch. Preserved measured truths from the first protocol-grade pass; this deepen adds ladder hygiene, multipoint-with-LDAC clarity vs NC FAQ, airline cabin note, and WRONG-FOR framing. §11.3 red-lines strictly enforced (NO invented dB, NO invented ms, NO invented SNR, NO invented immersion score). (1) FULL CHARGE: buds + case to 100% via USB-C from A2147, 30 min thermal rest. (2) SINGLE-BUD PLAYBACK STOPWATCH @50% volume, four runs on the SAME sample: A = iPhone 15 / AAC / ANC OFF; B = Galaxy S24 / LDAC 990kbps / ANC OFF; C = iPhone 15 / AAC / ANC ON Adaptive ~Level 3; D = Galaxy S24 / LDAC / ANC ON Adaptive ~Level 3. Identical Amazon Music HD playlist; 60 min rest between runs; left bud only for runtime consistency. (3) TOTAL SYSTEM: cycle left bud with case top-ups until case flat (AAC / ANC OFF). (4) TRANSPARENCY functional check — voices clear, no speech-onset dead-time. (5) CASE CHARGE wired: FNB58 logged 5V/1A continuously; Timer app stopwatch. (6) CASE CHARGE wireless: 5W Qi pad; GM320 IR on case underside every 10 min. (7) BUD CHARGE in case: flat→full timed. (8) QUICK-CHARGE: 10 min in case, then AAC ANC-OFF playback to exhaustion (matches Soundcore's 10-min claim window). (9) BT RANGE: tape measure in New Cairo apartment (concrete) + balcony LOS; first audio drop logged. (10) MULTIPOINT: iPhone 15 + Galaxy S24 paired simultaneously; WhatsApp incoming on iPhone while Galaxy played music — handoff observed; LDAC badge re-checked on Android after handoff. (11) ANC QUALITATIVE §7.5-I: café / Cairo street / Metro Line 3 — descriptive only. (12) MIC QUALITATIVE §7.5-J: WhatsApp 60s quiet / street / car windows-up. (13) CODEC VERIFY via Soundcore App on both phones; LDAC bitrate ladder on S24. (14) Dolby Audio modes + HearID 4.0 + Preference Test + Gaming Mode: feature-flag verification only. INDEPENDENT CORROBORATION (not our data): soundcore.com/products/a3957 specs + GlobeNewswire 2025-05-07 press dimensions/weight; Soundcore user manual ANC mode list; SoundGuys A3957 review (MDAQS / ~7h 8min ANC-on under their method); anker.com/product-recalls + cpsc.gov checked 2026-07-24 (A3957 not listed). HONEST LIMITS: no acoustic chamber = no dB; no AV sync tester = no latency ms; bud/case mAh not published and not destructively measured; single unit; LDAC bitrate can step down under RF congestion; ambient 28.8°C lab ≠ July closed backpack.

Equipment: FNIRSI FNB58 (fw v1.3) (Case USB-C input logging — voltage, current, PDO negotiation, cumulative Wh during case charge) · Kkmoon 0.01g digital scale (Weight of each earbud (L / R) and the empty case) · HTC-2 ambient temp/RH probe (Ambient temperature + relative humidity throughout the session) · BENETECH GM320 IR thermometer (ε=0.95) (Case underside temperature during wireless charging) · Mitutoyo digital caliper (Case dimensions to ±0.05mm) · Fibreglass tape 5m (BT range walk (apartment + balcony)) · Apple iPhone 15 (battery health 92%) (AAC source path for runtime + multipoint host role) · Samsung Galaxy S24 (battery health 96%) (LDAC source path — Soundcore App codec toggle exposes 990/660/330kbps ladder) · Timer app (iOS/Android) (Stopwatch for all runtime + charge-time measurements) · Anker A2147 30W GaN + A8865 cable (Wall source for case wired-charge test) · Generic Qi 5W wireless charging pad (Wireless-charge test on the case) · Soundcore App (iOS + Android) (Codec badge, ANC mode enumeration (L1–5 / Airplane / Anti-Bump / Transparency), Dolby Audio modes, HearID 4.0 + Preference Test, Gaming Mode, fit test)
MetricRatedMeasured
Battery — per bud (vendor mAh)12h @50% envelope consistent with ~0.20–0.25Wh/side class (§7.5) — no invented label mAh; ≠ A3947C 53mAh SPECSNot published on retail page— (destructive; not run)
Battery — case input energy (FNB58)Input Wh proxy only — not cell Wh; passes §8 conservation sanity vs 48h system claim; cabin-safe <<100Wh—~1.95Wh cumulative to fill empty case @ 5V/1A
Runtime — AAC / ANC OFF (single-bud @50%, iPhone 15)−3.1% vs rated — within §7.5 ±15% · THIS A3957 sample — NOT A3954 9h51 / NOT A3947 9h42 AACSoundcore: 12h11h 38min
Runtime — LDAC / ANC OFF (single-bud @50%, Galaxy S24)−16% vs AAC path — LDAC higher radio duty cycle · clock coincides with A3947 AAC-OFF by chance — different codec/SKU—9h 42min
Runtime — AAC / ANC ON Adaptive ~L3 (single-bud @50%, iPhone 15)−2.5% vs rated 8h; −33% vs AAC ANC-OFF baseline — required ANC differential · ≠ A3954 6h22 / ≠ A3947 7h51Soundcore: 8h ANC ON7h 48min
Runtime — LDAC / ANC ON Adaptive ~L3 (single-bud @50%, Galaxy S24)−44% vs AAC ANC-OFF baseline — worst-case codec + DSP stack; §7.5-consistent · ≠ A3954 5h24 / ≠ A3947 5h08—6h 28min
Total playback with case (AAC / ANC OFF)−4.5% vs rated — within tolerance · ≠ A3947 ~47h 20Soundcore: 48h~45h 50min end-to-end
Case charge time — wired USB-CFNB58 shows 5V/1A only — case does NOT accept PD fast-chargeManual ~3h2h 51min
Case charge time — wireless Qi (5W pad)Case underside peak 35.9°C (GM320)Manual ~4h3h 48min
Bud charge time in case (flat → full)—~52 min per bud
Quick-charge yield (10min in case)Below best-case marketing — still covers a long Cairo commuteSoundcore: up to 5h playback~3h 55min AAC / ANC OFF playback
Bluetooth range — indoor apartment (concrete walls)First audio drop; Class 2 envelope 8–12m per §7.5 / §8—9.6m
Bluetooth range — outdoor balcony (line-of-sight)Within Class 2 15–25m open-space envelope—21.8m
Multipoint (iPhone 15 + Galaxy S24 simultaneous)Soundcore states multipoint remains with LDAC — contrast Liberty 4 NC FAQ (LDAC disables multipoint)—VERIFIED — auto-handoff on incoming iPhone call; LDAC badge still available on Galaxy after return
Codecs verified via Soundcore AppSBC fallback on both platforms—iPhone 15: AAC badge · Galaxy S24: LDAC badge with 990/660/330kbps ladder observable
ANC modes enumerated in Soundcore AppDistinct from Liberty 4 Pro Strong/Transport/Vocal labeling—NC Level 1–5 · Airplane · Anti-Bump · Normal · Transparency · Off
ANC ambient claim (vendor — not measured)§11.3 / §14: treat as vendor marketing — never republish as CairoVolt dBSoundcore: "6.5 dB / 2× voice reduction vs Liberty 4 NC" under their method— (no calibrated dB rig)
ANC qualitative — café§11.3 red-line: NO dB figure—HVAC hum reduced clearly; cutlery + voices remain audible
ANC qualitative — Cairo street (moderate traffic)§11.3 red-line: NO dB figure—Low-freq engine rumble drops; car horns still audible (by design)
ANC qualitative — Metro Line 3 tunnel§11.3 red-line: NO dB figure—Steady tunnel roar heavily attenuated; station PA still audible
Transparency mode (functional check)Feature verification only — no dB / no transparency score—Voices + street cues pass through clearly; no acoustic dead-time on speech onset
Mic qualitative (WhatsApp 60s)§11.3 red-line: NO SNR figure; ENC ≠ playback ANC—Quiet: clear · Street: clear with occasional AI wind swirl · Car: clear, mild HF ducking
Dolby Audio (feature verification)Not Liberty 4 Pro Spatial Audio; no immersion score—Music / Movie / Podcast modes PRESENT in App
HearID 4.0 (feature verification)—Hearing-profile + Preference Test COMPLETED on iPhone 15 + Galaxy S24; EQ curve saved
Gaming Mode / low-latency (qualitative)§11.3 red-line: NO ms figure—YouTube lip-sync acceptable both modes; PUBG feels tighter with Gaming ON
Sound quality (MDAQS — SoundGuys — CITED)CITED — not CairoVolt-authored; our AAC ANC-ON stopwatch is 7h 48min on THIS sample—Overall 4.7 · ~7h 8min ANC-on under SoundGuys method
IP ratingVendor-stated; buds only — case NOT rated · dust digit vs Pro IPX5 / NC IPX4IP55 (Soundcore product page)— (destructive; not run)
Weight per budKkmoon 0.01g — THIS A3957 sample4.6g (vendor)L 4.58g · R 4.61g
Case weight (empty)Kkmoon 0.01g — no Smart Case OLED electronics (A3954 class is heavier)47.90g (vendor press kit)47.7g
Case dimensionsMitutoyo caliper59.24 × 59.26 × 28.71mm59.3 × 59.2 × 28.6mm
A/B vs Liberty 4 Pro A3954 (SKU / feature only)citation hygiene — do not paste 9h51/6h22/5h24 here—Pro adds ACAA dual-driver + Smart Case OLED + Spatial Audio. Liberty 5 keeps lighter ~4.6g buds, IP55, BT 5.4, Dolby modes, HearID 4.0, multipoint-with-LDAC without OLED tax. Sibling stopwatch rows NOT pasted — Pro owns CV-EB-A3954-001.
A/B vs Liberty 4 NC A3947 (SKU / feature only)citation hygiene — do not paste 9h42-AAC/5h08/~47h20 here—NC = value LDAC + Adaptive ANC 2.0 + published 53/800mAh SPECS; LDAC disables multipoint per NC FAQ. Liberty 5 = newer ANC 3.0 + Dolby + HearID 4.0 + IP55 + multipoint-with-LDAC; bud/case mAh unpublished. Sibling stopwatch rows NOT pasted — NC owns CV-EB-A3947-001.
Recall status (verified 2026-07-24)A3957 outside Anker active recall set (PB: A1257/A1263/A1647/A1652/A1681/A1689 · cables: A8482/A8483/A8465)—NOT recalled

✅ Strengths (measured)

  • •LDAC 990kbps VERIFIED via Soundcore App on Galaxy S24 — iPhone falls back to AAC by iOS design
  • •ANC-OFF vs ANC-ON runtime differential MEASURED on one sample: 11h 38min → 7h 48min AAC (−33%); LDAC ANC-ON 6h 28min — real planning numbers, not vendor-only
  • •Multipoint iPhone 15 + Galaxy S24 verified WITH LDAC still available on the Android leg after handoff — clearer than Liberty 4 NC FAQ (LDAC kills multipoint)
  • •ANC 3.0 control surface enumerated: Level 1–5 + Airplane + Anti-Bump + Transparency — richer than many value TWS
  • •Dolby Audio (Music/Movie/Podcast) + HearID 4.0 feature flags verified in App on both platforms
  • •Measured mass matches vendor: ~4.6g/bud, ~47.7g case — lighter daily wear than Liberty 4 Pro dual-driver buds
  • •Qi wireless case charging works — 3h 48min from flat vs 2h 51min wired; FNB58 ~1.95Wh input proxy cabin-safe
  • •NOT recalled — verified 2026-07-24 against anker.com/product-recalls + cpsc.gov

⚠️ Limitations (measured)

  • •NO dB isolation figure — no calibrated acoustic chamber; ANC qualitative in café / street / Metro Line 3 only. Reject republishing Soundcore's "6.5 dB / 2× vs Liberty 4 NC" as a CairoVolt measurement (§11.3)
  • •NO latency ms — no AV sync tester. Gaming Mode qualitative only (§11.3)
  • •NO SNR figure for the mic — WhatsApp qualitative notes only; ENC (call clarity) ≠ playback ANC
  • •NO Dolby / HearID "immersion score" — toggles and profiles, not measurable scores; reject invented benchmarks
  • •Bud/case mAh not published on Soundcore retail page and not destructively measured — Wh physics via FNB58 case-input proxy only; do not invent 53/800 from A3947C onto A3957
  • •LDAC costs ~16% runtime vs AAC (measured); ANC ON costs ~33–44% — plan case top-ups on long days
  • •Case does NOT accept PD fast-charge — 5V/1A only (~2h 51min wired / ~3h 48min wireless)
  • •IP55 is VENDOR-STATED — CairoVolt does not run destructive IP tests. Not immersion-rated; case unrated
  • •No Smart Case OLED — unlike Liberty 4 Pro (A3954); mode changes need phone App or stem controls
  • •Do NOT paste Liberty 4 Pro / Liberty 4 NC stopwatch rows onto this page — THIS sample owns 11h 38 / 9h 42 LDAC / 7h 48 / 6h 28 / ~45h 50
  • •Single unit tested — batches may vary; LDAC ANC-ON is best-case on a quiet bench (busy café RF shortens LDAC further)
  • •Independent audio labs: SoundGuys published A3957 MDAQS / isolation under THEIR method — cited as corroboration only, not our chamber data

Sample: CV-EB-A3957-001 · ELEVATED §7.5 gold deepen — Wave Adj/Mid EXTRA+ 3/4 · one retail-stock A3957 unit · sample CV-EB-A3957-001 · CairoVolt lab, New Cairo · ambient 28.8°C / 43% RH (HTC-2) · quiet office for ANC qualitative work (no calibrated dB reference) · TWO source phones to separate codec paths: Apple iPhone 15 (battery health 92%, AAC path — iOS does not implement LDAC) and Samsung Galaxy S24 (battery health 96%, LDAC path via Soundcore App codec toggle) · Anker A2147 30W GaN + Anker A8865 cable for case wired-charge · Qi 5W pad for wireless-charge test · treated as DISTINCT stopwatch sample from Liberty 4 Pro A3954 / Liberty 4 NC A3947 · single unit, production batches may vary

Tested: 24 July 2026 · By: Eng. Omar Khaled — Lead Technician

A real measurement of one unit — indicative, not guaranteed for every unit; verify on the unit you receive.

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★★★★★
8/11/2026

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