ULTRA-LOW BASS RESPONSE Enjoy powerful deep bass, without compromising the depth and balance of the track WIRELESS PERFORMANCE Reliable Bluetooth connectivity with built-in microphone 50 HOURS PLAYBACK On a full four-hour charge, plus quick 15min charge for 3 hours playback DUO POWER DRIVERS Two 40 mm Neodymium driver units provide deep, yet delicate bass sound HIGH-COMFORT FIT Soft cushioned headband and earpads fit gently over the ears for hours of anytime anywhere comfort