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. Immerse yourself in sound with these Bluetooth headphones with Active Noise Cancellation and transparency mode lets you tune in or out of your surroundings with the click of a button. These wireless Bluetooth headphones feature two dedicated microphones located at the ideal angle and distance to provide enhanced voice clarity. Wirelessly pair these cordless headphones with up to two devices at the same time and an improved range of over 100 feet lets you seamlessly stream your music from a greater distance. The optimal circuit design and large battery capability let you experience an industry leading 30 hours of playtime.