Doubke Eagle 579 Rc Bulldozer is a 2.4G Radio Control Tracked Bulldozer comes with Light and Sounds .It is durable enough for indoors and outdoors playing. It is powered by 3.7V battery. Its slow but does a fair job for the money. This is a 1/20 scake rc construction model. The ripper on the bsck is not remote control and isnt really functional. #rcbulldozer #rcdoz