Soundcore Liberty 4 Pro Blue – Adaptive ANC Earbuds with LDAC and Smart Case Display
The Soundcore Liberty 4 Pro Blue is a pair of true wireless noise-cancelling earbuds finished in a Glossy Light Blue colourway with a semi-transparent case lid. Designed for commuters, frequent flyers, and office workers who want serious noise cancellation alongside hi-res wireless audio, these earbuds pack dual drivers, seven sensors, and a touch-bar case display into a single package. The Glossy Light Blue finish suits listeners who prefer a lighter, more distinctive aesthetic over the standard black or white options.
⚠️ LDAC is Android-only. LDAC Hi-Res wireless streaming requires Android 8.0 or later. iPhones and iPads use SBC or AAC instead — not LDAC.
⚠️ LDAC and multipoint cannot run simultaneously. Enabling LDAC disables the dual-device connection feature, and vice versa. Choose the mode that suits your current setup.
⚠️ LDAC and Spatial Audio are mutually exclusive. Both features require full codec bandwidth. You cannot run them together in the Soundcore app.
⚠️ No wall charger included. The box contains the earbuds, charging case, a USB-C cable, and ear tips in six sizes. You need your own USB-A or USB-C power adaptor.
Technical Specifications
Drivers and Audio
| Specification | Detail |
|---|---|
| Driver configuration | Dual driver per earbud (10.5mm dynamic + titanium tweeter) |
| Frequency response | 20 Hz – 20,000 Hz |
| Wireless codecs | SBC, AAC, LDAC (Android 8.0+ only) |
| Spatial Audio modes | Music, Podcast, Movie, Game (head-tracking) |
Noise Cancellation
| Specification | Detail |
|---|---|
| ANC type | Adaptive ANC 3.0, 7-sensor |
| ANC sensors | 6 acoustic + 1 barometric pressure |
| ANC adjustment speed | Every 0.3 seconds |
| ANC levels | 10 adjustable levels (via case touch bar or app) |
| Flight mode | Yes – enhanced low-frequency suppression |
Battery and Charging
| Specification | Detail |
|---|---|
| Earbud battery | 56 mAh per earbud |
| Case battery | 580 mAh |
| Playtime (ANC off) | Up to 10 hours per earbud; 40 hours total with case |
| Playtime (ANC on) | Up to 8 hours per earbud; 30 hours total with case |
| Quick charge | 5 minutes → 4 hours playback |
| Earbud charge time | ~40 minutes in case |
| Case charge (USB-C) | ~2.5 hours (5V, 1A input) |
| Case charge (wireless) | ~3.5 hours via Qi |
| Charger included | USB-C cable only — no wall adaptor |
Connectivity
| Specification | Detail |
|---|---|
| Bluetooth version | 5.3 |
| Multipoint | Yes – 2 devices simultaneously (incompatible with LDAC) |
| Google Fast Pair | Yes (Android 6.0+) |
| Mono mode | Yes – single earbud mixes both channels |
Build and Physical
| Specification | Detail |
|---|---|
| Model number | A3954ZG1 |
| Colourway | Glossy Light Blue |
| Case lid | Semi-transparent (case display visible through closed lid) |
| Earbud weight | 5.5 g per earbud |
| Case weight | 51 g |
| Earbud dimensions | 25 × 32 × 22 mm |
| Case dimensions | 65 × 62 × 30 mm |
| Water resistance | IPX5 (earbuds) |
| Ear tips included | XXS, XS, S, M (pre-installed), L, XL |
| Recycled materials | Over 28% PCR materials in construction |
| Packaging | Plastic-free |
Microphones and Call Quality
| Specification | Detail |
|---|---|
| Microphone count | 6 mics per set with AI noise reduction |
| EasyChat | Auto-lowers music when you speak — requires ANC mode active |
In Box
| Item |
|---|
| Soundcore Liberty 4 Pro earbuds (Glossy Light Blue) |
| Charging case |
| USB-C charging cable |
| Ear tips: XXS, XS, S, M, L, XL |
Use Cases
Daily Commuting and Office Work
Commuters on trains and buses deal with broadband rumble and unpredictable crowd noise. The seven-sensor ANC system adapts continuously to these changing conditions, rather than locking to a fixed suppression curve. As a result, the transition between quiet platforms and noisy carriages requires no manual adjustment. In an open-plan office, the adjustable ANC levels let you dial suppression precisely — enough to block keyboard and HVAC noise without making you feel isolated from colleagues.
Long-Haul Flights
The barometric pressure sensor specifically addresses the low-frequency drone of aircraft cabins. When air pressure drops during ascent, the Liberty 4 Pro Blue adjusts its noise-cancelling profile accordingly. Consequently, the earbuds maintain effective suppression at altitude without you needing to change any setting. The 30-hour ANC-on battery with the case covers most intercontinental journeys from departure gate to arrival without recharging.
Hi-Res Listening on Android
Android users can enable LDAC to stream audio at up to 990 kbps — roughly three times the data throughput of standard SBC. This higher data rate preserves more harmonic detail, particularly in acoustic recordings and classical music. For instance, the dual-driver architecture separates bass and treble reproduction, so instrument separation improves noticeably at higher bitrates. Note, however, that enabling LDAC disables multipoint connectivity for that session.
Calls in Noisy Environments
Six beamforming microphones with AI noise reduction focus on your voice while suppressing background sounds. The EasyChat function detects when you begin speaking and automatically drops music volume, switching the ambient mode so the other person can hear you without you removing the earbuds. After you stop speaking, the earbuds subsequently restore the previous ANC level — by default after five seconds, though this is adjustable in the app.
Considerations Before Buying
Codec compatibility on iOS: iPhone and iPad users cannot access LDAC. Additionally, Spatial Audio head-tracking relies on the Soundcore app rather than Apple’s own spatial audio system, so the experience differs from AirPods. SBC and AAC still deliver good sound quality on iOS, but the hi-res wireless tier requires Android.
LDAC, multipoint, and Spatial Audio cannot all run simultaneously: These three features compete for bandwidth and system resources. Therefore, decide which combination matters most before purchasing — frequent multitaskers between phone and laptop may prefer to leave LDAC off to keep dual-device switching available.
The case display requires the app for full functionality: The touch bar controls ANC level and a handful of case functions out of the box. However, switching spatial audio modes, enabling Find Device, or using the Remote Camera shutter requires the Soundcore app to be installed and configured first.
IPX5 covers exercise and rain but not submersion: The earbuds withstand sweat and rain splashes. Nevertheless, you should not submerge them in water or wear them swimming.
Semi-transparent case lid: The Glossy Light Blue colourway features a partially translucent lid that lets the case display remain visible even when closed. This differs from the opaque matte-finish variants such as Matte Black and Matte White.
Frequently Asked Questions
Does the Soundcore Liberty 4 Pro Blue support wireless charging?
Yes. The charging case supports both USB-C wired charging and Qi wireless charging. A standard Qi charging pad will charge the case, though it takes approximately 3.5 hours — slightly longer than the 2.5-hour wired rate. Note that no wall adaptor is included; you need your own charger.
Can you use one earbud at a time?
Yes. The Liberty 4 Pro supports true mono mode, where using a single earbud mixes both left and right audio channels into one earbud. This makes it practical for situations where you need to remain aware of your surroundings with one ear free.
Is LDAC available on iPhone?
No. LDAC requires Android 8.0 or later. On iOS devices, the earbuds connect using SBC or AAC instead. Both codecs deliver good sound quality, but LDAC’s higher data rate and associated detail improvement are unavailable on Apple devices.
Are all Liberty 4 Pro colour variants hardware-identical?
Yes. The Glossy Light Blue shares the same drivers, sensors, battery, codecs, and ANC system as Matte Black, Matte White, and Glossy Black variants. Only the case finish and colour differ. The Glossy Light Blue and Glossy Black variants both feature a semi-transparent case lid through which the display is visible when closed.
Does the case display work without the app?
Partially. The display shows battery levels for the earbuds and case without any app required. The touch bar controls ANC intensity level out of the box as well. However, spatial audio mode switching, Remote Camera, and Find Device require the Soundcore app to be set up first.
What ear tip sizes are included?
Six sizes are included: XXS, XS, S, M (pre-installed), L, and XL. The Soundcore app also includes a fit test tool that uses the ANC microphones to detect whether your current ear tip creates a proper seal — a useful step before using the earbuds at full ANC strength.
Related Products
- Soundcore Liberty 4 Pro (Glossy Black) – Same hardware in a glossy black finish; case display also visible through the closed semi-transparent lid
- Soundcore Liberty 4 Pro (Matte White) – Same hardware in a fingerprint-resistant matte white finish with opaque lid
- Soundcore Liberty 4 Pro (Matte Black) – Same hardware in a matte black finish with opaque lid
- Soundcore Liberty 5 (Blue) – Next-generation Liberty earbuds with Dolby Audio, ANC 3.0, and 48-hour total battery
- Soundcore Space Q45 (Black) – Over-ear ANC headphones with LDAC and 50-hour total battery
Internal Link (exact match anchor): Soundcore Liberty 4 Pro Blue
External Link (exact match anchor): Soundcore Liberty 4 Pro Blue
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