Product information:
Transmission range: about 10 meters
Function: battery display, call function, support music
Bluetooth protocol: 5.0
Channel: stereo
How to use: earplug type
Whether single or double ear: bilateral stereo
Applicable gift-giving occasions: weddings, birthdays, holidays, housewarming, trade fairs, advertising promotions, employee benefits, anniversary celebrations, business gifts, opening ceremonies, awards commemoratives, public relations planning
Color: T13 pink, T12 black

Packing: 
Bluetooth headset x 1