Function: Talkback, answer the phone, listen to music, remote camera, remote control warning light, data statistics, share community, automatic SOS alarm; Bluetooth: BLE4.0+HFP/HSP/A2DP; Taillight: 8 lights in its tail, 3 lights in left side, 3 lights in right side, colorful LED; Key: Start-up (Play, stop, shutdown); Volume" + "( the next song), volume " - "(the next song).