*This high sensitivity triggered alarm suitable for bicycle, car, motorcycle, electric bike and so on, also can works as a doorwindow sensor alarm. *Makes a 113dB loud ring to effectively scare thieves away. It also can work as a SOS emergency alarm when you ride fall accidentally, it will automatically issue a help sound, give you and your bike multiple protection. *7 level adjustable sensitivity, ensuring your bicycle safer. Suitable for installation in a various environments. *6 kinds of alarm sound are arbitrarily selected, 113dB loud sound can effectively play the role of anti-theft. *Waterproof and strong plastics are permanently installed on your bikecyle or electric car without worrying about having to remove it in bad weather. Specifications: Alarm Volume: 113dB Adjustable Sensitivity Level: 7 Waterproof: IP55 Host battery: 3*AAA battery (included) Loudspeaker Batteries: 3* 1.5V AAA (included) Remote Controller: 1*12V 27A (included) Bell Sound Types: 6 Working Environment Temperature: -20~60 Working Environment: 80 Storage Temperature: -30-+70 Alarm Host Size: 65mm*45mm Remote Controller: 60mm*30mm Package Included: 1 x Anti-Theft Alarm 1 x Remote Control 1 x Cable Ties 1 x Screwdriver 1 x Triangle Slice 2 x Sticker 1 x User Manual