DetailsProduct information - Function - noise reduction; bone conduction; power display; call function; NFC function; voice control; support for music; multi-point connectionChannel - StereoHow to use - hanging earWhether single or binaural - bilateral stereoColor - S900 Black; S900 Blue; S900 WhiteMold type - private moldBluetooth version - 5.1Receiving distance - ≥10m (barrier-free)Headphone battery capacity 80mAhAbout 10 hours of continuous listening to music at a timeElectric compartment battery capacity 400mAhCan charge the headset about 2 timesBattery charging time is about 3hCharging input - 5V==0.5~2APacking list - Bluetooth headset*2Charging compartment*1