Wireless Anti-Theft Alarm: Built-in motion sensor and vibration detection. Triggers a loud 110dB alarm when your bicycle is touched or moved, drawing attention and deterring theft. Features a vehicle locate function with up to 70 meters remote control range, helping you quickly find your bike in crowded parking areas.7-Level Adjustable Sensitivity: Offers seven sensitivity levels to detect touch, movement, tilt, or impact. Automatically adjusts to different environments and conditions. Ideal for bicycles, electric bikes, motorcycles, and other vehicles. Default setting is high sensitivity. Can also be used on doors or windows.IP65 Waterproof and Dustproof & USB Rechargeable: Equipped with a built-in 3.7V 700mAh rechargeable lithium battery and 4th generation power-saving technology. Provides up to one month of operation on a full charge (depending on usage). Constructed with high-quality PC and anti-UV materials. Rated IP65 for protection against water, dust, snow, and sunlight.5 Warning Light Modes: Bright rear light enhances visibility day and night. Auto high-beam for 2 seconds during braking to alert nearby riders. Five lighting modes: Slow Flashing, Breathing, Fast Blinking, Steady Light, and OFF. Easily controlled via wireless remote.Easy to Install: Includes mounting bracket and cable ties. Bracket fits standard tube installations. Cable ties allow secure mounting on irregular surfaces. Combines brake light and security alarm functions to protect your bike from theft and improve riding safety. Compatible with bicycles, mountain bikes, motorcycles, skateboards, and electric tricycles.What You Get: 1 x Bike Alarm with Tail Light