Features 1 Simple mechanical structure installation is very easy 2 With L298N control module four monitoring modules and 51 control units 3 The battery box can hold four batteries convenient for the entire power system Reference Manual click to downloadNote Due to different producing batches product details might be a little different If you minding the difference please buy it carefully Package included 1 x Car chassis 2 x Car wheels4 x Fasteners high intensity black acrylic 1 x Caster1 x Battery box without battery 1 x A quality Rocker Switch1 x V5 shield1 x UNO R31 x SG901 x FPV 1 x L298N1 x USB Cable