Transmission range：10 meters
Function：Battery display, voice control, call function, support music, multi – point connection
Processing customized：is
Printing LOGO：can
Bluetooth protocol：5.0
Channel：stereo
Use：Earplugs type
Single or double ears：Bilateral stereo
Suitable for gift giving occasions：Opening ceremony, employee welfare, award ceremony, anniversary, trade fair, advertising promotion, festival, housewarming, wedding, public relations planning, birthday, business gift