Industry-leading noise cancellation using multiple microphones & Auto NC Optimizer All new lightweight design with soft fit leather Superlative sound with precision-engineered 30mm drivers Superior call quality with four beamforming microphones and AI-based noise reduction algorithm Speak-to-Chat automatically stops your music and lets in ambient sound 30 hours of battery life with quick charging (3 minute charge for 3 hours of playback) Alexa voice assistant built-in for hands-free use