Features: The use of distance: 10m The latest Bluetooth 4.1 technology Battery capacity: 65mAH Talk time: 4.5 hours Charge hours: 2 hours Standby time: 180 hours Power input: DC5V / 200mA Noise: CVC6.0 The song: Support Agreement: HFP HSP A2DP AVRCP APTX Voice prompts: Support Function: call dialing, remote answer / end / reject / switch, telephone redial, mute, volume control, English switch, smart one for two, music pause / play, up and down the song Applications: Supports any, IPAD tablet, desktop computer with a Bluetooth device class phones. Not carrying a Bluetooth-enabled desktop computers can be used with a Bluetooth adapter.Package Includes: 1PC Bluetooth Wireless In-Ear Stereo Headphones Waterproof Sports Headphones