AquaCraft Models Reef Racer 2 Ready-To-Run Radio Controlled Electric-Powered Self-Righting Mini-Vee Racing Boat with Radio, Batteries and Charger A unique self-righting design returns the Reef Racer 2 to right-side-up and running again after a rollover, to keep you in the action. At just 15 inches long, the Reef Racer 2 does not require a large body of water for you to enjoy fast response and turn-on-a-dime handling. The powerful 380-size motor comes with a water-cooling jacket that keeps performance at peak levels and temperatures under control. The 1100mAh Nickel Metal Hydride battery provides long run times, and comes with a 12-volt field charger. Nothing to build or finish; just install your choice of AA batteries in the transmitter and head out to your nearest pond, pool or lake.