Wireless Anti-Theft AlarmAnti-theft bike alarm built-in motion sensor and vibration alarm, if someone touches or move your bicycle, it will make a loud voice (110dB) to attract people's attention and stop thieves. In addition, the bicycle alert has vehicle locate ringing function and the bicycle alarm supports Max 70 meters range control distance, you can easily find your bicycle in the parking lot. 7 Levels Adjustable SensitivityBicycle alarm has 7 levels adjustable sensitivity from gently touch to push or beat, suitable for all occasions. Vibrations, movements and tilts can be sensed and alarms triggered. Suitable for bikes, electric vehicles and various other vehicles motorcycles. Initial default high sensitivity. You can also install it for your door or window. IP65 Waterproof Dustproof and USB RechargeableThe bicycle back light alarm built-in rechargeable 3.7V 700mAh lithium battery and uses 4th version power-saving technology, you can use it for a month when you are fully charged(depend on the work frequency). It adopts PC and anti-UV material, IP65 waterproof rated, it can effectively protect this product from rain, sun, dust, snow damage. 5 Warning Light ModesThe lamp of the bicycle is very bright, so people can see you in the distance, whether during the day or the night. The bike rear light will auto highlight 2s when you braking, that remind other rider noticed you and enhance your riding safety. The taillight has 5 light modesslow Flashing/Breathing/Fast Blinking/Steady Light/OFF, easily selected by wireless remote. Easy to UseCome with mounting bracket and cable ties, you can choose one of them to install it. Bracket installation suitable for tube installation position. Cable ties installation is suitable for irregular mounting objects. This bicycle alarm has brake light and safety alarm function, which can prevent your bike from being stolen and provide additional safety for your cycling, suitable for bike, mountain bike, motorcycle, skateboard, electric tricycle. What You Will Get: 1 x Bike Alarm with Tail Light