113db Security Alarm: Once triggered, super loud voice will be a great deterrence. Not only designed for Bicycle, Motorcycles, can also works with e-bike, scooter, door and window. Waterproof Bicycle Alarm: PC material shell, IP55 waterproof level, can use for outdoor. Easy To Install: Two kinds of install tools, double-sided sticker and straps, with them, alarm can be mounted on bicycle, motorcycle, car or other devices stably and firmly. Warranty: Mengshen offers 12 months hassle-free warranty and quickly response customer service. For any issues while using, please contact our service team at any time. More Remote Control Is Available: If you need more remote controls. Just search "B07THJWNHR" on Amazon to get some. Heavy Duty MaterialMade of a strong zinc alloy metal, strong and durable, not easy break or rust. Matte Black FinishedHigh temperature spray paint black finish, smooth and beautiful surface, not easy to drop paint and oxidation Double Sides DesignSliding left and right two-way latch, simple and practical, strong security performance, Offers Reliable Protection Against Intruders. Heavy Duty DesignThe latch is made of thickened solid metal material, heavy construction, and can withstand strong external forces.