HI-RES AUDIO WIRELESS: The WH950NB headphone supports both Hi-Res Audio wireless with LDAC certification, which gives you a wide range of details, and clarity for the ultimate listening experience. ACTIVE NOISE CANCELLATION WITH AMBIENT SOUND: There are 2 active noise cancellation modes, so that users could choose ambient sound or wind reduction in different scenarios to create an ideal environment. CRYSTAL-CLEAR CALL: The WH950NB is built in 4 microphones to ensure clear voice calls.These microphones are integrated with the audio signal processor to direct your voice, which adds an extra layer of crystal-clear quality to your important conversations. 40MM DYNAMIC DRIVER: The WH950NB has a 40mm composite titanium film driver that delivers exceptional sound. It accurately presents natural and balanced audio for all genres of music. GOOGLE FAST PAIRING: With one tap, the WH950NB enables quick and effortless Bluetooth pairing with your Android device. 55H PLAYBACK TIME: With a 55-hour battery life perfect for long road trips, you can enjoy up to 34 hours of playback time with ANC. FAST CHARGING: You can get extra 7 hours of battery life with a simply 10-minute fast charging.