Specification: 1.
Bluetooth version: V 5.0 2.
Bluetooth protocol: HFP, HSP, A2DP, AVRCP, SPP 3.
Transmitted power: Class 2 (-6dbm - 4dbm) 4.
Transmission distance: 20m 5.
Charging Voltage: 5V 6.
Operating Voltage: 3.7V 7. Battery Model of
Charging Box: 18500 2000mAh 8.
Charging Current: 60mA 9.
Music playback time: about 6H 10.
Call time: about 6H 11.
Charging time: 1H 12.
Charging interface: Micro-USB 13.
Horn impedance: 16 O±(15%)O at 1KHz 14.
Standby Time: about 300H
Material: ABS+
metal colour: black
Package Contents: 2 * Bluetooth Earphone 1 * Charging Box 1 * USB Cable 2 * Ear caps 1 * User Manual