Giới thiệu Bộ Tai Nghe Bluetooth Không Dây Đeo Cổ Tiện Dụng Kèm Phụ Kiện
Color: black, gold, silver Bluetooth protocol: 5.0 Transmission range: 10 meters Channel: stereo Whether single or double ear: bilateral stereo Applicable gift-giving occasions: advertising promotions, weddings, birthdays, business gifts Function: voice control, call function, support music Usage: neck hanging type Whether it is waterproof: sweatproof and waterproof Erasable TF card
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