Features 1.Anti Theft: Bike alarm up to 113dB alarm, allowing thieves to escape while awakening the owner and attracting the attention of neighbors, can effectively prevent bikes from being stolen or robbed from entering your home, protecting your property safety. 2.Adjustable Sensitivity and IP55 Waterproof: The wireless bike alarm features 5 levels of adjustable sensitivity for easy setup from light touch to push or tap. IP55 waterproof, suitable for outdoor use. Vehicle search function to easily find your vehicle in the parking lot. 3.Large Capacity Battery: The bike vibration alarm adopts lithium battery, which has a large capacity, is safe and durable, the charging time is only 2?3 hours, and the exquisite and compact design is easy to hide and install. 4.With Remote Control: Remote control vibration alarm, 4 modes, arm, disarm, doorbell, car search mode, remote control is easy to control, the remote control distance is about 66 feet (with obstacles), about 131 feet (without obstacles). It can also be used as a horn to alert pedestrians to vehicles behind. 5.Wide Applicability: The bike vibration alarm can be installed in two ways, stick it with a double sided sticker or attach it with a strap. Suitable for bikes, cars, motorcycles, e bikes, scooters, trailers, luggage, doors, window, etc. specificationItem Type: Bike Alarm_x000D_ Material: ABS_x000D_ Colour: Black_x000D_ Function: Alarm Anti Theft_x000D_ Built in Battery: 2 x CR2032_x000D_ Battery Capacity: 520mAh_x000D_ Scope of Application: Bike, Household, Etc. PackageList 1 x Bike Alarm 1 x Remote Control 1 x Charging Cable 1 x Manual 2 x Cable Ties 1 x Hook and Loop