Transmission range: 10 meters
Function: battery display, call function, support music, multi-point connection
Bluetooth protocol: 4.1
Channel: stereo
How to use: earplug type
Whether single or double ear, bilateral stereo
Applicable gift-giving occasions: employee benefits, awards commemoration, anniversary celebrations, birthdays, business gifts
Color: white + charging cable + ear hook, black + charging cable + ear hook
