SAVFY Wireless Bluetooth 3.0 Universal Sports Headphone Earphone Hifi Stereo For SmartPhone PC MP3 MP4 iPod Headset Bluetooth version: V3.0 Supports control of play/pause, volume up and volume down Built-in rechargeable lithium battery, charge directly from USB port Portable behind-the-head wearing design, convenient for sports, Allow you answer the phone any-time and anywhere Work with Bluetooth enabled mobile phones,MP3, MP4, tablets, notebook. Such as Apple iphone, ipad, ipod. Samsung, HTC, LG, Nokia, Motorola