120db Anti-theft Bike Alarm, 0.1kg Ultralight Wireless Remote Control Bike Alarm, Bike Security Alarm Lock The wireless bike theft alarm is made of high-quality metal, with corrosion resistance, wear resistance, durability and sustainable development. Simple and easy to install and suitable for locking bicycles. The wireless lock uses highly sensitive defense sensors with microcomputer control for high reliability and sensitivity and maximum security. If there is an alarm, it will be triggered accurately by the intruder. Specially designed for the bicycle, install it to ensure the safety of your bike. Mini appearance, it is convenient to take everywhere. Vibration and disassembly trigger an alarm when the sound is 110dB to prevent theft and burglary. Press the \"Lock\" button, the alarm system will start after a beep. In this case, the alarm will be triggered when vibration occurs. To stop the alarm system, just press the Unlock button. The alarm system stops working after 2 beeps. Then you can ride your bike. As soon as someone wants to unlock their bike, a maximum beep of 110 dB will sound for almost 20 seconds. When the beep is over, the lock is again in alarm. In this situation, the alarm is triggered again to repel other people.