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Bluetooth version: 5.0
Transmission range: 10m
Function: Battery display, Voice control, Call function, Music Support, NFC function, Multi-point Connection
Playing time: 8H-10H long time playing 
Standby time: 60 days
Weight: 400g
Channel: Stereo
Usage: Head-mounted
Mono or dual channel: Double-sided stereo
Unit diameter: 3.5mm
Speaker sensitivity: 96 B + 3 DB (at1KH)
Resistance: 32Ω
Color: Black and red, Red and black,  Blue and black, Black, White
Anti-glare effect: Seven-color LED Breathing Light
HIFI Stereo with microphone,low Bass sound effect
40mm diaphragm speaker drivers, deep bass stereo sound, enjoy the wireless high quality music