Headphone type：Bone conduction (not in the ear)

Waterproof grade：8 Grade waterproof

Body memory：8G,support local playback

Bluetooth version：Bluetooth 5.0

Bluetooth chip：Actions ATS2825

Supported protocols：A2DP v1.3,AVRCP v1.5,HFP v1.6,HSP v1.2Working frequency:20HZ-20KHZ

Horn diameter：16mm

Speaker impedance：8ohm

Speaker power：0.5W

Battery：lithium polymer battery,200mAH

Music playback time：4-5 Hours

Talk time：5-7 Hours

Standby time：120 Hours

Charging time：1.5 Hours

Charging method：Base Magnetic Suctior

Wireless transmission distance：10-15 meters(open space)Built-in Microphone

Microphone Sensitivity：-38dB

Support IOS device power display

Main material：PC/ABS

Product weight：46.5g