BLUEDIO BT5 Over-ear Bluetooth-compatible Earphone Stereo Deep Bass Headset Wireless Headphone with Mic for PC Gaming Upgrade Bluetooth-compatible 5.0: Automatically paired and connected after power on,Bluetooth-compatible 5.0 chip,stable transmission is up to 10 meters Hands-free Calling & Built-in Mic: With noise reduction microphone technology and the fast stable Bluetooth-compatible 5.2 wireless transmission,you can make a clear wireless hand-free call easily Universal Compatibility: For iPhone,for iPad,for iPod,Android and many other audio devices. High-quality sound,supreme durability,and maximum comfort Long Battery Life: 15-20 hours of listening and talking time,1000 hours of standby time Specification: Headphone function keys: turn on/off/pause/play/receive calls/up and down music/volume up and down Bluetooth-compatible version: 5.0 Transmission frequency: 2.4-2.48GHZ Bluetooth-compatible range: up to 10 meters (available space Bluetooth-compatible mode A2DP,AVRCP,HSP,HFP Frequency response: 20Hz-20KHZ Audio resolution: 24bit@48kHz Drive unit: Medium 57mmx2 Impedance total harmonic distortion: (THD) 0.3%-3% (THD) Sound pressure level: (SPL) 8db Headphone battery: 300mAh polymer battery Standby time: about 1000 hours Bluetooth-compatible music/talk time: about 15-20 hours Charging time: about 2 hours when fully charged Operating temperature range: 10 degrees Celsius to 50 degrees Celsius Input voltage/current: 5V/≥500mA Power consumption: 30mw+30mw Charging interface: Type-C Package included: 1 x Over-ear Bluetooth-compatible Earphone 1 x Charging Cable 1 x English and Chinese User Manual Other items not included