Manufacturer’s hot head-mounted wireless Bluetooth

        Transmission range: 15 meters Function: battery display, call function, NFC function, voice control, support music, multi-point connection Custom processing: Yes Print LOGO: Yes Bluetooth protocol: 5.0 Channel: stereo How to use: head-mounted Whether single or double ear: bilateral stereo Applicable gift-giving occasions: weddings, birthdays, holidays, housewarming, trade fairs, advertising promotions, employee…