Product information:
Color: pp bag (black),pp bag (white),complete package (black),complete package (white)
Transmission range: 10 meters
Channel: Stereo
Chip type: Zhongke Lanxun
Applicable gift-giving occasions: wedding, birthday, festival, housewarming, trade fair, advertising promotion, employee benefits, anniversary celebration, business gifts, Opening Ceremony, public relations planning
Battery life: 4
Functions: power display, call function, NFC function, voice control, music support, multi-point connections
Usage: earplug