SmartBB JXD 510W 2.4G 6 Axis Gyro WIFI FPV Headless Mode RC Quadcopter with 0.3MP Camera Barometer Set Height One Key Return 2.4GHZ 4 channels 6-axis Gyro flight control system ensures the stronger anti-interference performance and powerful signal. Wifi Real-time through mobile phone: Real-time transmission with mobile phone when you connected the wifi by Quadcopter. Altitude hold mode: With high density air pressure sensor which can precisely hold the height. Headless mode: Completely solving "loss of orientation" problems. 360 degree eversion: Professional cool and exquisite all-directional rolling.