Attention :This Electronic parts,included Standard Servos and use for the 500 RC helicopter frame which is standard servo mount. All included: 70A Brushless ESC X1,Suitable for 3D flight. FMT101 Brushless motor 1700KV X 1,Suitable for 3D flight. 3S1P 22.2V 2600mAh 25CX1,Suitable for 3D flight. Transmitter: 2.4G 6 channel remote control X 1,Suitable for 3D flight. Receiver: 2.4G 7 channel Receiver X1,Suitable for 3D flight. Gyro: FMT 008 Gyro X 1,Suitable for 3D flight. Servo:MG995 x3pcs Tail servo:Digital servo*1pc