Bluetooth version: V5.0

Transmission distance: 15 meters outdoor straight line distance

Battery capacity: earphone 30MA

HCharging box battery capacity: 300MAH

Speaker: 13mm true copper ring speaker

Listening to music time: 4 hours

Talk time: about 4 hours

Standby time: 120 hours

Charging time: 70 minutes

Working current: 5-10MA

Working voltage: 3.0V-4.2V

Distortion: <0.1%

Signal to noise ratio: >90dbPackage Included:

1 * One pair of Bluetooth headsets

1 * Charging box

1 * Charging cable

1 * User Manual