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Specification: Build in rechargeable battery A remote need for a 12v/27a alkaline battery (included) standby for more than 1 year. G.W. : White box, 80g Black color TV Size: 28 × 58 × 11mm(1.10" × 2.28" × 0.43")(approx.) Frequency: 433.92Mhz Remote control distance: 20m Alarm volume: 113db (distance is 30cm) Wireless range: 30 meters Working environment temperature: -20 60 60 degrees Work environment: <80% Storage temperature: -30 70 70 degrees 1 Remote Packing list: 1 * alarm (including battery) 1 * remote (including battery) 2 * cable tie 1 * double-sided sticker 1 * charging cable 1 * User Manual 2 Remote Packing list: 1 * alarm (including battery) 2 * remote (including battery) 2 * cable tie 1 * double-sided sticker 1 * charging cable 1 * User Manual Multipurpose Bicycle Alarm Bike alarm motion sensor has great anti-bike theft function. Vibration trigger alarm is very suitable for bicycle, motorcycle, electric bicycle, electric scooter and so on. You can also install a vibration alarm for your door or window, which will trigger the alarm when someone tries to open it. 7 levels of adjustable sensitivity Control vibration sensor alarm sensitivity with 7 adjustment levels. This allows you to configure your bike alarm however you like. 3 adjustable volume levels and waterproof IP55 Motorcycle Bike Anti-Theft Alarm has up to 113lb loud alarm, scare away potential thieves effectively and attract people's attention. It also has a three-level volume adjustment function, so you don't have to worry about the volume being extremely loud or not loud at all. Waterproof IP55, very suitable for outdoor use. wireless remote control Wireless bicycle security alarm control by remote control, strong wireless range up to 20m/66ft. Vehicle search function, easy to find your vehicles in the parking lot, 3 types of bells for your choice (not available in arm mode). Easy to install and use The bicycle vibration alarm comes with adhesive and double-sided handle, which can be installed by gluing or tieing. No screws or wiring needed. The 3.7"*1.6"*0.8" exquisite and compact design is easy to hide and install. search function Easy to search you vehicle out within a certain diatsnce, the alarm will sound when you press ringtone key. SOS function The alarm will automatically alarm to call for help when your bike tilts more than 45 degrees. (Note: SOS function is off in default mode) pairing DIY Can pair up to 8 remotes, press the disarm key of the first remote, then long press the ringtone key. After the alarm sounds beep beep press the arm key of the new remote, the alarm will beep beep beep..beep beep.