NEVER MISS A BEAT: H8i wireless headphones have a built-in proximity sensor that automatically stops playback when you remove your headphones and resumes when you put them back on.THE SOUND OF MUSIC: Immerse yourself in sound with these Bluetooth headphones with Active Noise Cancellation. Transparency Mode lets you tune in or out of your surroundings with the click of a button.SUPERIOR CALL QUALITY: These wireless Bluetooth headphones feature two dedicated microphones located at the ideal angle and distance to provide enhanced voice clarity.EXPAND YOUR SOUND: Wirelessly pair these cordless headphones with up to two devices at the same time. An improved range of over 100 feet lets you seamlessly stream your music from a greater distance.PLAY LONGER: The optimal circuit design and large battery capability let you experience an industry leading 30 hours of playtime.