T-COMVB Hands-free Car Bluetooth Headset $ 45.52 Product Information: Transmission range: 100m Function: call function, support music, full-duplex intercom Bluetooth protocol: 2.1+EDR Channel: stereo How to use: head-mounted Type: T-COMVB standard hard wheat, T-COMVB standard soft wheat, FDC hard wheat, FDC soft wheat, T-COM clip set, T-COM data cable Mold type: private mold Chip type: Qualcomm Intercom distance: 800 meters Product name: Bluetooth intercom for motorcycle helmet Packing List: Plastic walkie talkie x1