The Freelap Mx Motocross Timer is designed for motocross and all terrain vehicles. Included with the timer is a USB cable and charger for US and other countries, foam and plastic protective cover with Velcro straps to mount to cycle handlebars, and canvas zipper case for easy storage. The Mx Timer records lap times and best lap time. It has a backlit display for easy reading. The Mx Timer is triggered when the rider passes a Freelap transmitter like the Tx Power 5 (sold separately) with an accuracy of 2/200 seconds. The Mx Timer is water resistant.