Feature 1. Super Loud Anti-Theft Alarm -- This alarm features an ultra-loud 113dB alarm that ensures your belongings are protected with exceptional anti-theft performances. The piercing sound deters potential thieves and alerts you immediately in case of any unauthorized access, and there are 3 kinds of bells optional. 2. Wireless Remote Control -- This bicycle alarm system with motion sensor can be operated by remote control, remote range up to 50-80M, the motorbike alarm can be used to search vehicle. In addition, the LED light on the alarm will turn on while press the bell button. Red LED light design makes electric bike more visible and can be found quickly even in dark conditions. The motorbike alarm can search vehicle, it is easy to find your vehicle in parking lot. 3. 7 Levels Adjustable Sensitivity -- Utilizing advanced sensors and algorithms, this intelligent alarm accurately identifies theft and reduces false alarms. With adjustable sensitivity and volume settings, you can set the bike alarm to meet specific needs, ensuring optimal performances and reliability. 4. Waterproof and Durable -- Made of waterproof PC material, this alarm can withstand harsh weather conditions and daily wear & tear. Whether it's rain, snow, or dust, the durable construction ensures reliable performances over time. 5. Long Service Life and Endurance -- 3 * AAA battery power supply (In Equipment), Low energy consumption, long working hours and long service life. You can trust it to remain active and vigilant for extended periods without frequent battery replacement. 6. Flexible and Easy Installation -- Enjoy hassle-free installation with our flexible and easy-to-install design. No screws or wiring are required. you can install the device where you want. Specification: Colour:Black Material:plastic Package Contents: 1 * Bike Alarm 1 * Remote Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.