Description: This vibration-triggered theft alarm system with 110 dB loud alarm sound can help deter thieves effectively,provides additional security and gives you security when your vehicles park at home or outdoors. There are 7-adjustable sensitivity levels from gentle touch to shock or blow. And 3-adjustable volume up to 110 dB. Note!!! Please charge completely before first use,otherwise the remote control will not work well!!! Specifications: Condition: 100% brand new Color: Black Alarm volume: up to 110 dB Alarm Battery: 4.2 V 700 mAh Lithium Battery Working time (alarm): 1.3 months,standby time 6 months Alarm charging port: Standard USB-C 5V Remote control battery: 27 A (12 V) Alkaline battery Operating frequency: 433.92 MHz Working environment temperature: -40~+70 Humidity of the working environment: lt;80% Storage temperature: -40~+70 Warranty: Yes Package includes: 1*Bike Alarm