Mengshen Smart Wireless Remote Control Bike Bicycle Alarm Siren Shock Vibration Sensor Cycling Lock Anti-Theft Guard Burglar Alarm MS-Z04 Perfect to protect your shop, office, home, car, house or anywhere requiring protection. Simple to operate and easy to install. Super loud, simple, easy to theft Short leave cycling, no longer bother to go locked up Wireless Vibration Alarm with infra-red remote control.