HRT-XXXX Digital Servo DGS-3399 - 9V 4 wheels Robot body Lithium polymer 1200 mAh Battery Pack GMR-1501 Digial servo BM-xxxMG DC Motor (Coreless Motor) - AL case BM-xxxMG DC Motor BM-1301B Digital Robot servo mini RX-Power Switch DHV-2288 Titanium gear Digital Power Regulator Switch and Low-voltage Alarm Digital servos DHV-2288 Coreless, High V'tg for CAR Digital servos DGS-1199 Digital servo HDS-2288 with Coreless motor Digital servos DGS-1088 (JUMBO) Digital Robot Servo: RB-1188, RB-1199