Duratrax 1/8 835E 2.4GHZ RTR Buggy FEATURES: Chassis: Countersunk anodized aluminum, 0.13 (3.25mm) thick Drive: Four wheel shaft, with hardened steel driveshaft and gears INCLUDES: RTR 835E Buggy, 2.4GHz Radio System, ESC, Brushless Motor, Painted Body, Instruction Manual REQUIRES: Battery: 4S hard case LiPo with Deans Ultra Plug connector OR two 2S hard case LiPo batteries with series adapter