Anker Soundcore Liberty 4 Nc True-Wireless Noise Cancelling.

Reduce noise by up to 98.5% with our advanced noise cancelling system Adaptive ANC 2.0 adapts to ears and environment in real-time 11mm drivers, Hi-Res Wireless and LDAC technology for crisp sound Full adjustable EQ with Hear ID 2.0 for a tailored sound profile 10/50 hours of battery for long-lasting quiet