Transmission range: 10 meters
Function: power display, voice control, call function, music support, multi-point connection, NFC function
Bluetooth protocol: 4.1
Channel: Stereo
Usage: Earplug
Whether single and double ears: bilateral stereo
Applicable gifts occasions: opening ceremony, employee benefits, awards commemorative, anniversary celebrations, trade fairs, advertising promotions, festivals, housewarming, wedding, public relations planning, birthday, business gifts
Color: White, Black, Red, Gold, Rose Gold