Anker Soundcore Liberty 5 Pro earns Guinness World Record

Anker’s Soundcore Liberty 5 Pro series has achieved a Guinness World Record for the highest Global Mean Opinion Score (G-MOS) for speech quality among True Wireless Stereo (TWS) earbuds. The record, confirmed in April 2026, applies to both the Liberty 5 Pro and the Liberty 5 Pro Max models.

The technology driving this achievement is the Whisper-Clear Calls system, which utilizes eight microphones and two voice vibration sensors to isolate speech from environmental noise. An integrated Anker Thus AI chip processes both active noise cancellation and voice enhancement simultaneously in real time. This allows the devices to distinguish user voices from background sounds like traffic, wind, or crowds, making them particularly suited for professional use during travel and conferences.