Mirror Series Wireless Digital Display TWS Bluetooth Headset 5.0 Dual-call $ 9.96 Product information: Transmission range: 10 meters Function: battery display, call function, voice control, support music Bluetooth protocol: 5.0 Channel; stereo How to use: earplug style Whether single or double ear: bilateral stereo Color; R11 mirror, R15 mirror, M9-17 mirror, M9-18 mirror, M9-19 mirror, S20 black mirror, H3 mirror Mold type: private mold Packing list Bluetooth headset*1