{"id":40102,"date":"2026-03-26T11:23:22","date_gmt":"2026-03-26T11:23:22","guid":{"rendered":"https:\/\/livedemo.top\/drones\/product\/xkj-k21-max-wifi-fpv-with-lcd-screen-controller-hd-dual-camera-servo-gimbal-optical-flow-positioning-gradient-flowing-light-brushless-foldable-rc-drone-quadcopter-rtf\/"},"modified":"2026-03-26T11:23:22","modified_gmt":"2026-03-26T11:23:22","slug":"xkj-k21-max-wifi-fpv-with-lcd-screen-controller-hd-dual-camera-servo-gimbal-optical-flow-positioning-gradient-flowing-light-brushless-foldable-rc-drone-quadcopter-rtf","status":"publish","type":"product","link":"https:\/\/livedemo.top\/drones\/product\/xkj-k21-max-wifi-fpv-with-lcd-screen-controller-hd-dual-camera-servo-gimbal-optical-flow-positioning-gradient-flowing-light-brushless-foldable-rc-drone-quadcopter-rtf\/","title":{"rendered":"XKJ K21 MAX WiFi FPV with LCD Screen Controller HD Dual Camera Servo Gimbal Optical Flow Positioning Gradient Flowing Light Brushless Foldable RC Drone Quadcopter RTF"},"content":{"rendered":"
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XKJ K21 MAX WiFi FPV with LCD Screen Controller HD Dual Camera Servo Gimbal Optical Flow Positioning Gradient Flowing Light Brushless Foldable RC Drone Quadcopter RTF<\/b><\/p>\n

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Specification:<\/span><\/p>\n

Brand Name: XKJ
Item NO.: K21 MAX
Color: Black<\/p>\n

Material: Plastic, Metal, Electronic Components
Frequency: 2.4G
Channel: 4CH
Gyro: 6-Axis
Motor: 1503 Brushless
Quadcopter Battery: 3.7V 1000mAh Lipo (Included)<\/font>
Flying Time: 8-15 mins<\/font>
Charging Time: About 40mins
Remote Control Mode: Mode 2 (Left Hand Throttle)<\/font>
Remote Control Battery: Built-in Rechargeable Lipo Battery
R\/C Distance: 80-100m<\/font><\/p>\n

Flight Height: About 30m<\/p>\n

RC Screnn Size: 4.3 inch<\/p>\n

FPV: 2.4G WiFi
FPV Distance: 15-30m<\/font>
Camera: 480P<\/font>
Adjustable Angle: 90\u00b0 Adjustable by Transmitter
Quad’s Size: 155 x 110 x 80mm (Foldable), 280 x 165 x 80mm (Unfoldable)
Take-OFF Weight: 148g <\/font>(Battery 29g)
Package Size: 26.3 x 20.4 x 9.1cm
Package Weight: 673g<\/p>\n

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Features:<\/span>
1. The drone has its own screen for real-time viewing of the flight screen. 
2. Supports 2 viewing modes; 1. Watch the flight screen on the mobile phone WiFi APP 2. Watch the flight screen in real time with the built-in display
3. The front lens is placed with wide-angle HD WIFI, the bottom HD lens with optical flow can switch the shooting angle, the servo gimbal is designed to increase stability, and EIS electronic image stabilization is added to make the photos clearer (support horizontal shooting, vertical shooting, and overhead shooting)
4. The fixed height function has a height holding mode function, optical flow positioning and fixed point function, and stable flight.
5. Ultra-long battery life 3.7V 1000mah lithium battery, the battery life is about 15 minutes,
6. Customized route. You can draw the picture you want to fly on the APP
7. APP mobile phone control, one-key return, headless mode, rise and fall, forward and backward, left and right side flight
8. Gesture photography, optical flow positioning, brushless motor, ultra-long battery life.
9. Brushless motor provides more powerful power and longer service life
10. It will not be lost if it exceeds the distance, you only need to connect the signal to control the drone again
11. Low power alarm, the remote control will sound an alarm when the battery is low
12. The product size is light and the fuselage weighs 148g.
13. 2.4GHz anti-interference technology, six-axis gyroscope, more stable flight and more convenient control.<\/p>\n

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Function: <\/font><\/span><\/span>Up\/down, Forward\/backward, Turn left\/right, Sideward flight, 3-level flight speed, LED Light, One Key Return, One Key Takeoff \/Landing, Brushless, WiFi FPV, Dual Camera\/Video, Optical Flow Positioning, Surrounding Flight, Waypoint Flight, LCD Screen Controller<\/p>\n

Package Included:<\/span>
1 x K21 MAX RC Quadcopter
1 x Screen Remote Controller<\/p>\n

1 x 3.7V Battery
2 x USB Charging Cable<\/p>\n

2 x Spare Propeller
2 x Manual
1 x Storage Bag<\/p>\n

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XKJ K21 MAX WiFi FPV with LCD Screen Controller HD Dual Camera Servo Gimbal Optical Flow Positioning Gradient Flowing Light Brushless Foldable RC Drone Quadcopter RTF Specification: Brand Name: XKJItem NO.: K21 MAXColor: Black Material: Plastic, Metal, Electronic ComponentsFrequency: 2.4GChannel: 4CHGyro: 6-AxisMotor: 1503 BrushlessQuadcopter Battery: 3.7V 1000mAh Lipo (Included)Flying Time: 8-15 minsCharging Time: About 40minsRemote 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