2023 Bluetooth Headset Wireless Hands Free Earphone Earpiece with Noise Canceling Microphone for Lavoro fitness corsa guida.Specification:①Chip: RDA②Bluetooth-compatible version: 5.0③Working range: 10~15 meters barrier-free④Wireless frequency: 2.402-2.480GHz⑤Transmission power: Class 2⑥Wearing type: 270°rotation⑦Color: blackpacchetto：1 X Auricolare Bluetooth1 X Tamponi in gomma LS1 X Charging Cable1 X Manual