Protect your bicycle or scooter with this Wireless Bicycle Alarm With Remote Wireless vibration alarm with infra-red remote control Simple to operate and easy to install Piercingly loud alarm alert Open area coverage: up to 30m Alarm: powered by 1x 6F22 9V battery Remote controller: powered by 1x L828 battery Dynamic current: less than 105db Dimensions: approx 9.5cm x 6cm x 3.8cm Includes: 1 x alarm, 1 x remote controller and 1 x screw kit  Rest assured when leaving your bike unattended Make sure no one steels your wheels with this Wireless Bicycle Alarm With Remote - save 44%