Product information:
Color: paper box Black, paper box White, pp bag White, pp bag Black, stand-alone
Transmission range: 10 meters
Channel: Mono
Chip type: Zhongke Lanxun
Applicable occasions for gifts: wedding, birthday, festival, housewarming, trade fair, advertising promotion, employee benefits, anniversary celebration, business gifts, Opening Ceremony, awards commemoration, public relations planning
Battery life: 4
Functions: power display, call function, NFC function, music support, multi-point connections
Usage: earplug