Transmission range :10 meters
function : Power display, call function, music support
Processing and customization : yes
Logo printing : sure
Bluetooth protocol : five
Vocal tract : stereo
Usage : Headwear
Do you have one or two ears : Bilateral stereo
Suitable for gift giving occasions : Birthday, festival,
housewarming, trade fair,
advertising promotion, employee benefits, anniversary celebration,
business gifts,
opening ceremony
colour : M5 music logo - black, M5 music logo - blue,
M5 Bluetooth logo - gray,
M5 music logo - gray, M5 music logo - gray