Features:100% brand new and high quality.Simple to operate and easy to install.Wireless Vibration Alarm with infra-red remote control.Perfect to protect your shop， office， home or anywhere requiring protection.Alarm with ON/OFF switch， and remote control with Alarm and Disarm buttons for easy operation.120dB alarm sound which can last about 40 seconds.Remote control range is up to 20 meter.Magnetic back and wall mount hole for easy installation.Remote control with keyring and clip for easy carrying. Specifications:Model: FK-102AColor: BlackHousing: PlasticsAlarm mode: Full micro -vibration triggeredControl mode: Remote wireless controlAlarm volume: ≤120DBDuration of each alarm: ≤40sControl range: Up to 20 meterOperation volume: DC 9V， the use of a GF22 battery (Not Included)Wall mount hole diameter: approx 7mmAlarm dimensions: approx 90*55*25mmRemote control dimensions: approx 50*40*13mmNet weight (alarm+control): 72g SOME REMINDING of USAGE:1. Please make sure the 9V battery is inserted into the item in the correct position (don't reverse the cathode and anode)2. Pushing 'ON' button to turn on the alarm and you may hear a beep sound， then press 'LOCK' button and you may hear a beep sound again. About 10-15 seconds later， the alarm turn into the state of alert.3. At the state of alert， the item may alarm while it is shocked or moved， the alarm sound will last for 30 seconds， or you may push button 'unlock' to turn it off.4. The vibration frequency is set while it is made， the level of sensitivity is stationary， therefore please don't consider the sensitive issue to be a quality problem. Package Includes:1 x Remote Control Vibration Alarm