Earphones, Robiear Bluetooth Ear Hook Wireless Sports Jogging Stereo Waterproof Headset Earphone Earbud Headphones Black 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.