This is an HPI Savage Flux HP Ready-to-Run 2.4GHz Brushless 4WD Monster Truck. The all-new Savage Flux HP is guaranteed to wow you and your friends! Powered by the high technology Flux Tork 2200 motor and twin battery packs, you will be pulling wheelies and getting air at the twitch of a finger! Easy plug-and-go convenience is the hallmark of electric RC vehicles like the Savage Flux HP. Just plug in two matching battery packs (not included) and you are off and running!