Hobbypower X525 V3 Quadcopter Foldable Kit 1000KV Motor KK2.15 Flight Controller SimonK 30A ESC Not assembled,just a kit X525 V3 fordling frame with 1000KV MotorCC3D Flight Controller SimonK 30A XXD 2212 KV1000 brushless motor with propeller adapter Hint: before using them , you should make all ESCs be adjustment and synchronous by using your remote controller: initial adjust ESC steps: 1.open the transmitter.(put the throttle to max) 2.connect the reciever 3 ch and brushless motors. 3. switch on the ESC power . heart the motor . drip drip.. two sounds. then put the throttle to minimum...and can hear drip...drip..drip..few times long beep. that is ok , it can work well