Transmission range: 20 meters
Function: battery display, call function, voice control, music support, multi-point connection
Bluetooth protocol: 5.0
Channel: Stereo
How to use: Earplug
Whether single or binaural: bilateral stereo
Applicable gift-giving occasions: wedding, birthday, holiday, housewarming, trade fair, advertising promotion, employee benefits, anniversary celebration, business gift, opening ceremony, award commemoration, public relations planning