pARRMA Big Rock 1/7 MT Brushless 6S 4WD RTRbrProduct DetailsbrbrSupersized to 1/7 scale and amped up with 6S platform power, this BIG ROCK™ 4x4 blasts like only the big ones can! With ARRMA® durability and performance plus a detailed, rugged truck body, its a massive, dirt-chucking monster capable of 65+ mph speeds.brbrKey FeaturesbrDetailed scale looks with three factory-finished body color choicesbrUpdated 6S LiPo capable Spektrum™ brushless power systembrBlack chassis components and electronics for aggressive stealth stylebrBash-ready ARRMA® all-road toughnessbr65+ mph capable (using 6S LiPo and optional, included speed pinion)brbrIn The Boxbr(1) 1/7 BIG ROCK Crew Cab 6S BLX 4X4 Monster Truck RTRbr(1) Spektrum Firma 150A Smart V2 Waterproof* ESCbr(1) Spektrum Firma 4074 2050Kv Brushless Motorbr(1) Spektrum S665 Waterproof* Metal-Gear Digital Servobr(1) Spektrum 2.4GHz SLT3 Transmitterbr(1) Spektrum SR315 3-Channel Dual Protocol Receiverbr(4) AA Batteriesbr(1) BIG ROCK Crew Cab 6S BLX Instruction Manual Miscellaneous Toolsbrbr/p