Product specification Optical Flow : YesOperating Frequency : 2.4 G+2.4 G+Digital Bridge Drone Intelligent Battery : 11.1V 3500mAh Control distance (Outdoor and unobstructed, depend on the environment and mobile device) : 3.5KM Wifi image transmission distance (Outdoor and unobstructed,depend on conditions and mobile device) : About 3.5KM Flight time : About 28 min Charging time : About 3.5 hours TYPE-C USB (5V/3A) TYPE-C USB Charging (5V/3A) : Yes Unfolded Product Size Folded : Unfolded:450X450X80MM Folded:210X95X80MM Lithium battery of transmitter : 3.7V 1500mAh Transmitter charging time: About 2 hours Transmitter operating time : About 2 hours Introduction to functional features- 2 -Axis Gimbal Mechanical Range & Control Range : (Tilt)X:-35° - +35° (Roll)Y:-100°- +70° (Adjustable Angle):-80°- +0° Gesture Control (Shotting / Video) : 1-3 M IMAGE Recognition Follow me : 3-10M GPS Follow me : 10-50MWay Point Flight : YesPoint of Interest : YesImage filter adjustment : YesImage Scaling : YesVideo Editing : YesVisiting Trace : YesMPH & m/s & km/h Conversion : YesSatellite Systems GPS / GLONASS : Yes Camera Lens : FOV:100°Photo Resolution : 3840x2160PVideo Resolution : 1280x720PSD Photo Resolution : 3840x2160PSD Video Resolution : 3840x2160PFrame Rate : 30fpsPhoto Format : JPGVideo Format : MP4One key share Photo / video : YesSD CARD : 32G-128G(Not Included)Card Reader : Not IncludedMobile Device System Version : iOS 9.0 or later /