The rock crawler is powered by a 550 brushed motor and comes fully built complete with 2.4GHz radio system and rechargeable 7.2V battery pack with charger. With a model that looks like this you are going to want to hit the off road pretty hard so with that in mind all the electronics have been upgraded to waterproof and dust proof versions and the differentials are impact resistant. This is a precision manufactured high quality model with a massive feature list, check out the full list below.4 WHEEL DRIVE SYSTEMThis model has a 4 Wheel Drive system with CNC shafts and gear. This hobby grade RC car also features locked front and rear differentials that further improves climbing ability.45 DEGREE STEERINGThe 45 degree steering angle allows you to easily manoeuvre while rock climbing.STEEL STEERING LINKAGESMetal steering linkages for off-road durability.PC SHELL WITH ACCESORIESDetailed scale appearance.ADVANCED ROCK CLIMBINGFull linkages and shafts for great performance while climbing.METAL GEARED SERVO & LARGE BATTERYChassis mounted 10kg ball raced servo & Velco strapped battery.2.4GHz RADIO SETAll new 2.4GHz radio technology is used. This is more reliable than the old FM equipment and allows multiple RC cars to be used in the same area without interference.