Product information: Color: black, gold, silver, blue, red Transmission range: 10 meters Channel: Stereo 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 Functions: power display, call function, voice control, music support, multi point connections Usage: neck hanging