1-Using three-dimensional displacement sensor, more accurate identification. Support remote control of ringing and then quickly find a Bicycle motorcycle. 2-7 level adjustable sensitivity, ensuring your bicycle . Suitable for installation in a environments. 3-6 kinds of alarm sound are arbitrarily , 113dB loud sound can effectively play the role of anti-theft. 4-Waterproof and strong ABS are permanently installed on your bikecyle or electric car without worrying about having to it in bad weather. 5-113db Security Alarm: Once triggered, super loud voice be a great deterrence. Not only designed for Bicycle, Motorcycles, can also works with e-bike, scooter, door and window. 6-Waterproof Bicycle Alarm: ABS material shell, IP55 waterproof level, can use for outdoor. 7-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. Color: black Material: ABS Package Contents: 2 x Bicycle Alarm (3 x AAAbattery is not included) 2 x Remote Control 4 x Cable Tie 4 x Double-sided Sticker 2 x Screw Driver 2 x Battery Compartment Opener 2 x Manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.