Features: 1.EASY TO INSTALL: Wireless vibration security alarm is easy to install by double sided adhesive, easy to install and use, no other tools required. Compact and portable, does not take up too much space. 2.WITH REMOTE CONTROL: Wireless vibration alarm with remote control, wireless control range up to 30m, using the remote control can easily control the alarm on/off, alarm, unprotect, turn on the doorbell function and so on. 3.HIGH DECIBEL ALARM SOUND: Wireless bike alarm will emit an alarm sound when it detects vibration, 108dB ultra high alarm sound to scare away intruders or thieves, and the loud volume of the alarm allows you to hear the alarm sound easily. 4.4 MODES: Anti theft alarm has 4 modes: guard, unguard, alarm mode and doorbell mode, controlled by remote control. The alarm can work continuously for more than 1 year in standby mode (assuming 5 times daily use). 5.WIDE APPLICATION: Bike alarm is suitable for doors, windows, bicycles, motorcycles, cars and vehicles. It can also be installed in stores, offices, homes or anywhere you need protection. Let you enjoy a safe and comfortable life! specification:Item Type: Wireless Vibration Alarm Material: ABS Alarm Volume: 108dB Remote Control Distance: About 30m/32.8yd Without Obstacles Alarm Battery: 2 x AAA Batteries (not Included) Remote Control Battery: 210mAh CR2032 Button Cell (included) Operating Temperature: ?10C to +60C Operating Humidity: R/H