Bluetooth Headphones, Otium Wireless Sweatproof Headphones Workout Gym Running Exercise SWEATPROOF HEADSETS: Sports audio feature and sweat proof covering and water proof covering make it stay in place no matter the physical activity. HAND-FREE HEADPHONES: Built in microphoneand Noise cancelling technology make you enjoy your phone call. POWERFUL BATTERY EARPIECES: Bluetooth V4.1 and 6 hours rechargeable battery keeps your tunes ready to go. MUTIP-COMPATILBE EARPHONES: This bluetooth earbuds can work with Samsung, Nexus, iPhone and other Bluetooth device. EASY OPERATIVE EARBUDS: Pair and play with your Bluetooth device with 30 foot range; Control your music with +-buttons.