Features: This versatile anti theft bike alarm superior security with alerts, ideal for bicycles, motorcycles, e bikes, and scooters to deter theft effectively. Featuring three adjustable sensitivity levels, three volumes settings up to 135 decibels, IPX5 waterproof design, wireless remote control with 40 meter ranges, and easy installation using adhesive strips or straps. Perfect for bike owners, motorcycle riders, and home users seeking security for their vehicles or as a door/window alarm. Use it outdoors for theft prevention in parking lots, on trail, or as a home security device to alert against unauthorized access. Its compact and discreet ABS construction ensures hassle setup without screws, making it a practical wireless security alarm for daily protections. Specifications: Charging voltages: 5V Host battery: 3.7V/400mAH Sound levels: >135dB Remote control distance: >50 meters Waterproof levels: IPX5 Remote control battery: CR2032x1 Host low battery reminder voltages: 3.3V Remote control standby time: >1 year Shell materials: ABS Host size: 67x42x23.5mm Remote control size: 65x35×13.5mm Package Includes: Hostx1 Remote controlx1 note: Before using the accessory, please check if it is compatible. Pay attention to the storage methods.