BIENNA Bluetooth Headphones Wireless Sport Running [Waterproof] [Sweatproof] Stereo Noise Cancelling Earbuds Headsets Earphones with Mic for IPhone Android IPad Laptop(Bluetooth 4.0+EDR) Compatible with all Bluetooth-enabled devices:connect to your iphone 6,6s,6 Plus,6s Plus,7,7 Plus,android phone and tablets from up to 33 feet(10M) away Noise Cancelling: Advanced CVC 6.0 technology eliminates the white noise and delivers a clean audio experience,which offers hours of pure enjoyment and perfect sound quality Sweatproof & Exercise-proof Design:Stable and Comfortable when use this Wireless Sport Earbuds to do all kinds of outdoor sports,such as running,hiking,cycling.Small, medium and big size earhooks included Built- in Mic Design:Hands-free calling supported by a built-in mic,its also simple-to-use.Control all functions of your music(volume,song selection)and calls from your phone via our simple-to-use user interface on the headphones themselves 5 HOURS USING TIME: built-in extra-long battery that provides up to 5 hours playing and 175 hours standby(it can easily be recharged via USB)