Smart waterproof wireless headset

Transmission range: 10 meters
Function: call function, support music
Bluetooth protocol: 5.0
Channel: stereo
Usage: earplug style
Single or dual ear: bilateral stereo
Applicable gift-giving occasions: weddings, birthdays, holidays, housewarming, trade fairs, advertising promotions, employee benefits, anniversary celebrations, business gifts, opening ceremonies, awards commemorations, public relations planning