Bluetooth Version:BT4.1 Waterproof and sweatproof,long battery duration Built-in microphone and line control,music play,pause,previous song, next song ,volume up/down,handfree answer call,reject call
Bluetooth Version:BT4.1 Waterproof and sweatproof,quick charging, bluetooth low energy Built-in microphone ,music play,pause,previous song, next song , volume up/down,handfree answer call,reject call
Bluetooth Version:BT4.1 Smart power save mode, super long battery duration Built-in microphone and line control,music play,pause,previous song, next song , volume up/down,handfree answer call,reject call
Bluetooth Version:BT4.1 Easy&convenient to wear, battery indicater display on smart phone Built-in microphone and line control,music play,pause,previous song, next song ,volume up/down,handfree answer call,reject call
Bluetooth Version:BT4.1 LED Touch key, Hi-fi Stereo,super long battery duration, Intelligent compatible Built-in microphone ,music play,pause,previous song, next song , volume up/down,handfree answer call,reject call
Bluetooth Version:BT4.1 Hi-fi stereo, Built-in microphone , battery indicater display on smart phone,Intelligent compatible music play,pause,previous song, next song ,volume up/down,handfree answer call,reject call
Bluetooth Version:BT4.1 Auto fold design,comfortable to wear,HD voice, Built-in microphone ,music play,pause,previous song, next song , volume up/down,handfree answer call,reject call,wearing stable
