$20 off for EMAX Nighthawk Pro FPV Quadcopter Coupon

EMAX Nighthawk Pro FPV Quadcopter Carbon Fiber/Glass Fiber Mixed Frame CPPM/GPS With Transmitter / EMAX 12A ESC RTF Version

Use Coupon:UJYLWORQ
Expire Date: September.30,2015

Highlights

• 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
• Bright COB rear LED, multi LED color to distinguish itself among copters during group flying (LED power consumption is 4W, which might decrease flying times.)
• All in one design, combining ESC, BEC, and flight controller for easy installation and replacement
• Plug and play motor, easy for swapping motor without soldering requirements
• Independent ESC, flight controller and power supply. ESC switch to perform single ESC calibration and boot pad to perform software and firmware upgrade
• Flight controller with built-in 32bit ARM micro processor, accelerated process to ensure acute response
• Gyroscope, magnetometer, accelerometer and barometer expansion port, CPPM receiver GPS feature available (GPS module sold separately)
• Support ANGLE, HORIZON, HEADFREE, MAG, HEADADJ ...etc modes
• Support RC Input: standard signal, CPPM (PPM SUM) signal, PWM signal
• Low voltage monitoring and low voltage warning (Buzzer sold separately)
• EMAX 12A ESC, open source BLHeli and ONESHOT support; flight controller based on NAZE32 Skyline32, open source configurator for Baseflight and Cleanflight support
• Extra power output and power output switch for LED expansion