Anti-Theft Bike Tail Light Alarm, Waterproof Bicycle Alarm with Remote 【Wireless Anti-theft Alarm】The bicycle anti-theft alarm has built-in motion sensor and vibration alarm, if someone touches or moves the bicycle, it will make a loud sound (110dB) to attract people's attention and deter thieves. In addition, the bicycle anti-theft alarm also has a vehicle positioning ring function. The bicycle alarm supports a control distance of up to 70 meters, allowing you to easily find your bicycle in the parking lot. 【7 Adjustable Sensitivity Levels】The bicycle alarm has 7 adjustable sensitivity levels, from light touch to pressing or tapping, suitable for all occasions. It can detect vibration, movement and tilt and trigger the alarm. Suitable for a variety of vehicles, such as bicycles, electric vehicles and motorcycles. The initial default value is high sensitivity. You can also install it on the door or window. 【IP65 Waterproof and Dustproof and USB Rechargeable】The bicycle taillight alarm has a built-in 3.7V 700mAh rechargeable lithium battery with the fourth edition power saving technology. It can be used for one month after a full charge (depending on the frequency of use). Made of high-quality PC + anti-UV material, the waterproof level reaches IP65, which can effectively protect this product from rain, sunlight, dust, and snow. 【5 Warning Light Modes】The bicycle light is very bright, so people can see you from a distance, whether it is day or night. When you brake, the tail light of the bicycle will automatically light up for 2 seconds to alert other cyclists to pay attention to you and improve your riding safety. The tail light has 5 lighting modes, slow flash/breathing/fast flash/constant on/constant off, which can be easily selected through the wireless remote control. 【Easy to Use】Equipped with a mounting bracket and cable tie, you can choose one of them for installation. The bracket installation is suitable for pipe installation locations. The cable tie installation is suitable for irregular installation objects. This bike alarm has brake light and security alarm functions to prevent bicycle theft and provide additional safety for your riding. It is suitable for bicycles, mountain bikes, motorcycles, skateboards, and electric tricycles.