Bluetooth version: Bluetooth 5.0+EDR Transmission distance: 10 meters Standby time: 120 hours (disconnected for 5 minutes automatically shut down) Battery: 200mAh rechargeable lithium battery Functions: Adjust volume, switch songs, insert card, answer incoming calls, reject incoming calls, hang up, hands-free calling, TF, pure English broadcasting Complete set of accessories: bare phone + charging cable + neutral color box