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Anker Soundcore Liberty 4 NC True-Wireless Noise Cancelling Earbuds
Key Features
Brand:Anker
Adaptive ANC up to 98.5% noise reduction
11mm drivers with BassUp technology
HearID personalized sound profiling
Spatial audio with head tracking
Up to 50 hours total battery life with wireless charging case
1 Year Warranty
Anker Soundcore Liberty 4 NC True-Wireless Earbuds Review
The Anker Soundcore Liberty 4 NC True-Wireless Earbuds represent a major benchmark in the mid-range audio market. They deliver flagship-grade active noise cancellation and exceptional battery performance at a highly competitive price point. Equipped with Adaptive ANC 2.0, 11mm custom drivers, and LDAC Hi-Res Audio wireless support, these stemmed earbuds are explicitly optimized for daily commuters, frequent travelers, and office environments.
Technical Specifications
- Driver Size 11mm custom-tuned dynamic drivers
- Noise Cancellation Adaptive ANC 2.0 (up to 98.5% ambient noise reduction)
- Connectivity Bluetooth 5.3 with Dual-Device Multipoint pairing
- Audio Codecs LDAC, AAC, SBC
- Battery Playtime Up to 10 hours per charge (extends to 50 hours with case)
- Battery with ANC On Up to 8 hours per charge (extends to 40 hours with case)
- Fast Charging A 10-minute USB-C quick charge provides 4 hours of playback
- Microphones 6 built-in microphones (3 per earbud) with AI call reduction algorithms
- Water Protection IPX4 splash and sweat resistance rating
Key Features and Daily Performance
Industry-Leading Adaptive ANC 2.0
The structural defining feature of the Liberty 4 NC is its hybrid active noise cancellation architecture. Utilizing a high-sensitivity in-ear sound sensor and an isolated noise-blocking chamber, the system dynamically analyzes ambient frequencies in real-time. It computes real-time adjustments to match your ear canal structure and immediately blocks out persistent lower-end drones like city traffic, airplane cabins, and office air conditioning.
Studio-Grade Sound Customization
The massive 11mm dynamic drivers produce an energetic, V-shaped sound signature featuring deep sub-bass rumble and crisp treble lines. Through the official Soundcore companion application, users can run a HearID 2.0 hearing test to map out a personalized frequency profile tailored entirely to their ears. Alternatively, listeners can choose from 22 pre-configured EQ slots or build a custom layout via an 8-band graphic equalizer.
Class-Leading 50-Hour Playtime
Battery performance easily outperforms most premium competitors. A single full charge yields a massive 10 hours of continuous music streaming with noise cancellation turned off. The pebble-style charging case incorporates an electronic push-button mechanism with ambient internal lighting and holds four extra full recharges, lifting total playtime limits to 50 hours.
True Wireless Multipoint and AI Calls
The inclusion of Bluetooth 5.3 enables seamless Multipoint pairing out of the box. This allows the earbuds to stay connected to your laptop and mobile phone concurrently, handling audio routing effortlessly when shifting from a desktop video meeting to an incoming smartphone call. During phone calls, the 6-microphone array works with AI software parameters to cleanly track your vocal lines while eliminating background interference.
Frequently Asked Questions
Can the charging case be powered wirelessly
Yes. The chunky, matte-finish charging case is highly versatile; it can be recharged using a standard wired USB-C cable or placed directly onto any compatible Qi-certified wireless charging pad.
Is LDAC high-resolution audio supported on Apple iOS devices
No. The high-bitrate LDAC audio streaming protocol requires an Android device running Android OS 8.0 or higher. When paired with an Apple iPhone or iPad, the earbuds will automatically stream audio using the high-quality AAC compression standard.
Can these earbuds be submerged in water or worn while swimming
No. The earbuds carry an IPX4 water resistance rating, meaning they are certified to handle heavy sweat during workouts, bathroom sink splashes, and outdoor rainstorms safely. They are not waterproof against water submersion, and the charging case itself does not carry an IP rating
