Introduction

The Soundcore Liberty 4 NC earbuds (Model Number: A3947, A3947H21) promise a compelling blend of noise cancellation, high-fidelity audio, and extended battery life. Having spent several weeks testing these earbuds in various environments, from bustling city streets to quiet home offices, I’m ready to share my comprehensive review.

Features

The Liberty 4 NC boasts a range of impressive features, starting with its advertised 98.5% noise reduction. This is achieved through a combination of a high-sensitivity in-ear sound sensor, an oversized driver, and an innovative noise isolation chamber. Beyond noise cancellation, the earbuds offer Adaptive ANC 2.0, which dynamically adjusts noise cancellation based on your surroundings. The 11mm custom-tuned drivers promise crisp, detailed sound, enhanced by Hi-Res wireless audio and LDAC technology.

Battery life is another key selling point, with Soundcore claiming up to 10 hours on a single charge and a total of 50 hours with the charging case. Wireless charging is also supported, adding to the convenience factor. The earbuds also feature a comfortable fit, thanks to multiple ear tip sizes included in the package.

Performance

The noise cancellation on the Liberty 4 NC is genuinely impressive. In noisy environments like busy streets and crowded cafes, the ANC effectively muted background noise, allowing me to focus on my music or podcasts. The Adaptive ANC 2.0 worked seamlessly, adjusting the level of noise cancellation as the environment changed. However, in extremely loud scenarios, some residual low-frequency noise was still perceptible.

The sound quality is excellent. The 11mm drivers deliver rich, detailed audio, with clear highs and well-defined bass. The LDAC codec provides a noticeable improvement in audio quality compared to standard Bluetooth codecs. The soundstage is surprisingly wide for in-ear headphones, enhancing the listening experience. The call quality was clear and crisp, even in moderately windy conditions, thanks to the multiple microphones implemented.

Battery life lived up to the manufacturer’s claims. I consistently achieved around 10 hours of playtime on a single charge, and the charging case provided ample additional power. The wireless charging was a welcome addition and made the whole experience even better.

Pros & Cons

• Excellent noise cancellation
• Impressive sound quality with detailed audio
• Long battery life
• Wireless charging capability
• Comfortable fit with multiple ear tip sizes
• LDAC codec for superior wireless audio

• Slightly pricey compared to some competitors
• Some residual noise at very high volumes
• Touch controls could be more intuitive for some users.

Final Verdict

The Soundcore Liberty 4 NC earbuds (A3947, A3947H21) offer a premium audio experience with top-tier noise cancellation and excellent battery life. While the price point is a bit higher than some alternatives, the overall performance and features justify the cost for those seeking a high-quality pair of wireless earbuds. The only area needing slight improvement is the responsiveness of the touch-controls and minor noise bleed through at extremely high volume scenarios. I wholeheartedly recommend the Liberty 4 NC to anyone looking for top-notch sound and effective noise reduction in a convenient package.