Length:650mm Height:230mm Main Rotor:680/700mm Tail Rotor:150mm Motor Gear:12T/13T Main Gear:150T Autorotation Tail Drive Gear:106T Tail Drive Gear:25T Drive Gear Ratio:1:12.5:4.24/1:11.5:4.24 Weight(without power system):365g Weight(including power system):690g T-REX 450SE Kits SetX1 set 325 PRO Rotor BladeX1 set 315 Carbon Rotor BladeX1 set Aluminum CaseX1 RCE-BL35X 35A Brushless ESC(Govener Mode)X1 New 430L Brushless motor(3550KV)X1 3S1P 11.1V 2100mAh/20CX1 Provided by user's power Equipments: Lithium Battery:DC11.1V(1300mAh or more) Transmitter:6 channel or more For Helicopter System Receiver:6 channel or more Gyro:1pc Servo:9gx3pcs Rud servo:1pc