EMAX Nighthawk Pro FPV Quadcopter Carbon Fiber/Glass Fiber Mixed Frame CPPM/GPS EMAX 12A ESC ARF Version. Solid, durable and stable frame, centroid and center of gravity are the same even with battery installed. Prebuilt frame and extra accessories. Powerful EMAX power system and open source flight controller to ensure power and customizability(RTF model can fly after battery and propellers installed). The sturdy copter frame has gone through extensive flight test and endurance test. Plug and play motor, easy for swapping motor without soldering requirements. Flight controller with built-in 32bit ARM micro processor, accelerated process to ensure acute response. Buy this product and Get Extra 20$ Off For EMAX Nighthawk Pro ARF Version FPV Quadcopter. Use coupon code: WIJXOUJG.