GoolRC 509W Drone with Camera Live Video Wifi FPV RC Quadcopter with APP Control & Gravity Motion Sensor function for Android/IOS , Altitude Hold & Headless Mode & One Key Return 1. ALTITUDE HOLD MODE: Thanks to the Built-in AIR PRESSURE SENSOR: Make sure the throttle stick at the middle position, when you push the throttle stick and then release, the rc drone will automatically set the height. Thus you can fly the drone easily and steadily. 2. TWO CONTROL MODES: 1. with Motion Sensing Control Function, Controlled and view by phone/tablet directly for IOS & Android system; 2. Controlled by transmitter, view by phone/tablet. 3. WIFI FPV REAL TIME TRANSMISSION: The live video will be shown on your phone ,you can see what the camera see at the same time . Seeing the world and Taking the pictures, video of the scenery ,famaily in various angle. The pictures and video store in your phone ,it`s easy to share them with your friend. 4. HEADLESS AND ONE KEY RETURN: With headless mode, no need to adjust the position of aircraft before flying.And one key return mode avoid lost aircraft and bring drone back with the simple push of a button. 5. STABLE FLGHT SYSTEM : With the latest 6-axis gyro flight control system, the drone will fly stably so that you can enjoy the easier flight ,taking clear photo and video. Adopting the 2.4Ghz radio control technology, ensure the powerful anti-interference capability.