The headphones use Sony's HD Noise Cancelling Processor QN1 and Dual Noise Sensor technology to deliver outstanding noise isolation, effectively blocking out a wide range of ambient sounds, including bass-heavy engine rumbles and mid-range chatter. Offers up to 30 hours of power with noise cancellation enabled, and a quick charge function provides 5 hours of playback after just 10 minutes of charging with an optional AC adapter. Optimized for Google Assistant and Alexa hands-free control. Learns your frequently visited locations and automatically adjusts ambient sound settings to suit your environment and activity. They feature powerful 40mm drivers with Liquid Crystal Polymer (LCP) diaphragms and support High-Resolution Audio with the LDAC Bluetooth codec.