HD Aerial Folding Drone With Switchable 4K Optical Flow Dual Cameras 50X Zoom RC Quadcopter RTF,     -Swithcable Dual Camera: Front camera and bottom camera can be switched by remote controller,   -Optical Flow Dual Positioning: Equipped with optical flow Locator in the horizontal direction and fixed air pressure in height ,   direction to achieve accuracy,Hover to make the picture clearer.,   -Modular battery: The battery adopts modular design, which is easy to install and replace.,   -Gesture interaction: Free up your hands for a big picture and get together to take a group photo.,   -Smart Phone Control: More ways to play in the APP.,   -HD Video Transmission,      Camera:1080p Optical Flow / 4K Wifi / 4K Optical Flow,   Product Color:Black,   Product Materials:ABS,   Adjustable Angle Camera:Adjustable camera by transmitter, 90°,   Phone Size (Max):5.5inch,   Remote Control Battery:2XAAA Battery,   Frequency:2.4GHz,   Product's Weight:113.2g,   Battery:3.7V 1200mAh,   Control Distance: About 150M,   Flight Time:About 15 mins,   Charging Time:About 3 hours,   USB Charging (3.7V)   :√,   Product Size:,   28x22x5.5cm(Expanding)   12x7.5x5.5cm(Folding),   Product Package Weight:497.4g(Box Package),   486.6g(Bag Package),   Image Transmission Distance:80CM,   Image Follow:1-3 Meter,   Tap Flight:√,   Camera Lens:120°,   Hand Gesture Shooting/Video Reconization:1-3 Meter,   Photo/video Share:√,   Photo Resolution:1080p Optical Flow:1920x1080p / 4K Wifi:4096x3072P / 4K Optical Flow:4096x3072P ,   Video Resolution:1080p Optical Flow:1920x1080p / 4K Wifi:2048*1080P / 4K Optical Flow:2048*1080P ,   Photo Resolution/Video Resolution(Bottom Camera):1080p Optical Flow:1080p Optical Flow:1280*720P / 4K Wifi:None / 4K Optical Flow:2048*1080P ,   Frame rate:20 fps,      Functions: Ascent/Descent,Forward/Backward,Turn left/Right,Hover,Fly Left/Fly Right,One-click take-off/landing, Optical Flow ,   Positioning, App Control, Headless Mode, Follow Me, Gesture Shooting,   Package Included:,   1x Drone,   1x Remote Controller,   1x Remote Joystick(Pair),   4x Propeller ,   4x Protective Frame,   1x USB Charging Cable ,   1x 3.7V 1200mAh Lipo Battery,   1x Screwdriver ,   1x Manual