This is a Bike Alarm, a hassle-free and easy-to-install device designed to fixing your bicycle with tie installation. In the armed mode, it detects any unauthorized movement and emits a loud alarm, ensuring the safety of your bike. Features: Easy Installation: This bike alarm Features a tie installation design, making it convenient to install on your bicycle. AntiTheft Protections: With its armed mode, the alarm system detects any unauthorized movement of your bike and immediately emits a loud alarm sound, alerting you and deterring potential thieves. Fall Detection: The bike alarm is equipped with a sensitive sensor that detects if your bike falls over during a ride. In such cases, it will automatically sound an alarm. Once you upright your bike, the alarm will turn off. Waterproof Design: Don't let rainy weather bother you from using this bike alarm. It is designed to be waterproof, ensuring reliable performances even in rainy weather. Adjustable Sound and Sensitivity: Customize your alarm settings with the 3-level sound adjustment and 7-level sensitivity adjustment options. This allows you to set the alarm to your preferred sound level and sensitivity level, ensuring optimal performances based on your specific needs. Remote Control Range: The bike alarm comes with a remote control that offers a range of 40-80 meters. This allows you to easily locate your bike within this range. Specifications: Main color: black Main material: plastics Waterproof: IP55 Alarm battery: 3 * AAA battery Remote battery: 1 * AA battery Alarm size: 96 * 42mm / 3.8 * 1.7in Remote size: 60 * 28mm / 2.4 * 1.1in Package size: 100 * 92 * 31mm / 3.9 * 3.6 * 1.2in Package weight: 133g / 4.7ounce Packing List: 1 * Alarm 1 * Remote Controller 1 * Screwdriver 1 * Tie 2 * Tape 1 * User Manual