Kit includes all components and instructions to make a Truck / Car Backing Up type alarm. Hooks to the reverse light in a car or truck to make a high pitch beeping sound when the car is put in reverse. Included in kit are circuit board, Piezo speaker, components and  instructions. Requires basic soldering skills and a 15 to 30 watt soldering iron. A small amount of solder is included with the kit

Style and size of piezo speaker may vary from picture.

Note: Speaker size & style may vary

Operates on 6-12 volts DC

Have fun, that's what it's all about.