E2X means Easy to Assemble

but this comes at the expense of standing backflips

Output Voltage: 5

which is almost a full volt less than a 2 Cell Li-Poly battery

HPI Racing - 1/5 Scale Baja 5B Flux 2WD Electric Desert Buggy SBK with Clear Body (No Electronics) HPI105832 E2X means Easy to AssembleThe one and only original HPI Baja 5B is BACK and ready for you to build from the ground up! The HPI SBK collection of Self Build Kits grows with the addition of not just one, but TWO 1 5th scale HPI kits! Fans of electric off road RC will be super excited to build their own brushless powered 1 5th scale with the HPI Baja 5B FLUX Self Build Kit! Experience the thrill and excitement of building a car which ends up being over 80cm (nearly 32 inches)