Wireless Anti-Theft Alarm for bicycles features a built-in motion sensor and vibration detection. If someone touches or moves your bicycle, the alarm emits a loud 110dB sound to attract attention and deter theft. The device includes a vehicle locating function with a remote control range of up to 70 meters, helping you easily locate your bike in crowded parking areas. The alarm offers 7 adjustable sensitivity levels, detecting anything from light touches to strong impacts. It responds to vibrations, movement, and tilting, making it suitable for bikes, electric vehicles, motorcycles, and other similar applications. The default setting is high sensitivity. The unit can also be installed on doors or windows for added security. Designed with durability in mind, this bike alarm features an IP65-rated waterproof and dustproof construction. Made from high-quality PC and anti-UV materials, it resists damage from rain, sunlight, dust, and snow. It contains a built-in 3.7V 700mAh rechargeable lithium battery with 4th generation power-saving technology, providing up to one month of operation on a full charge depending on usage frequency. The integrated rear light enhances visibility during day and night riding. It automatically brightens for 2 seconds when braking, increasing safety by alerting nearby riders. The taillight offers 5 modes: Slow Flashing, Breathing, Fast Blinking, Steady Light, and OFF, all selectable via wireless remote control. Easy to install with included mounting bracket and cable ties. The bracket is ideal for tubular frames, while cable ties allow secure attachment to irregular shapes. This device combines brake light functionality with anti-theft alarm protection, improving both security and safety during cycling. Compatible with bicycles, mountain bikes, motorcycles, skateboards, and electric tricycles. What You Will Get: 1 x Bike Alarm with Tail Light