DIY F450 Quadcopter Pixhawk PX4 Flight 7M GPS Brushless 30A ESC 2212 920KV Motor. This DIY HJ-F450 Quadcopter kit is unassembled. Come with high quality electronic accessories, still need a 3S Lipo battery and a 6CH above radio system to complete. This F450 Quadcopter is a very popular machine, it has a strong rack, beautiful […]