Optical & image following: put your hands on the bottom of the drone, The camera will use the light stream algorithm to calculate the displacement of the two frames of images, thereby realizing the positioning of the drone. You will lock the height and position more accurately and the hover more stable than ordinary drones. Tap on your mobile device and the sg900 will follow your designated target flight. Dual Camera & gesture photo: equipped with double 2MP HD Wi-Fi cameras, allows you Great view both front and Selfie, either top and bottom camera can take photos. It's also tillable to adjust view angle to help you to find the best point to record the memorable moment. Easy for you to shoot high-quality images or videos. V-sign mode - Optical follow version allow "v" Gesture to take selfie picture. Altitude hold & self power_off protection: you can accurately lock the height and location, stable hover, from any angle shooting are convenient.High/low speed mode and 3D flip function also provide you cool flying experience. Low battery protection combined with the light stream system, allows the drone to land safely without falling from the air. Multifunction: speed control/ Wi-Fi FPV/ Wi-Fi connection/ LED lights/ smartphone control/ altitude hold/ headless mode/ gyroscope/ 360°roll/ one down/ one key taking off/landing/ gesture photo/video/ dual cameras/ image following/ self power off protection/foldable design allow you can bring it anywhere, portable and easy to carry. Long-life rechargeable battery: the drone equipped with 3.7V 2200mAh rechargeable battery, the playing time is up to 22 minutes, The charging time is about 240 minutes, longer than the ordinary drone. Remote controller is also rechargeable, 40 minutes of charging time, jusing using 4.2V USB charging cable, you needn't buy extra AA batteries now.PS:Can Works indoor during this special times