Defender 20 3S HD: Elite 2024 Security Drone


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    iFlight Defender series features a better flying experience and performance with the next upcoming innovative step. Now is the time to take a step forward, let’s meet the Defender 20. With the integrated All-In-One design and extremely convenient user experience, the new Defender has created a new standard of FPV drones. Upgraded quick-release battery and charging adapter to support Type C fast charging and battery storage mode, making everything as easy as it can be. One-button power switch with inbuilt programmable RGB light, yes we can be stylish and functional.


    Remarkably Lightweight And Portable

    The palm-sized, compact Defender 20 is just as portable as it can be. The whole frame is injection molded for durability and lightweight, equipped with a naked DJI O3 air unit (Supplied by DJI). It’s not only regulation-friendly, but also the safest in its series, allowing you to fly anywhere and whenever.

    One-button Functional Power Switch

    Better operation through one physical button, not only just power on and off but also inbuilt programmable RGB light colors and modes to visually display the battery power. We’ve added a protective circuit to extend the lifespan of the battery connector and prevent rapid voltage or current spikes which can protect your electronics from damage.

    Innovative Quick-Release Battery with Type-C Charger

    The Defender 20 comes with a stock 3S 900mAh providing up to 7min flight time. Crash protected battery shell and innovative quick-release structure for easy replacement. Upgraded plug and play Type-C charger for user-friendly fast charging, get 80% charge in just 18 minutes. The battery has an inbuilt auto-discharge module, it will discharge itself when not in use, making it safe and worry-free.

    Extremely Convenient User Experience

    No fear of dust, take off boldly. By using dustproof port plugs to isolate the interface from the outside, ensure function properly. Extend the life of the interface.

    The drone can be disassembled with only 6 screws, making it much more convenient for maintenance and repair.

    Full plug and play high performance AIO, 30% increase in redundancy to cope with extreme operations. Integrated beeper for quick retrieval of accidental loss.

    All ports and buttons are easy to access.

    Countless easy-to-use features let you get started right away. 

    1) No soldering is required for the whole drone, motors, and propellers adopting the plug-in mounting method.

    2) A dedicated VTX mount bracket with a central grille opening, together with the air duct design in the drone, can dissipate heat when flying.

    3) USER1 preset as video transmitter power supply switch, used to manually turn off the VTX when idle to safe power and prevent overheating.

    4) Customized vibration damped O3 camera mount to keep your raw footage as smooth as possible, as well as ensure good Gyro Data for the in-built or in-post camera stabilization, jello free.


    Product Name: Defender 20 O3 3S HD

    Flight Electronics: Defender 16/20 F411 AIO

    Video Transmission: DJI O3 Air Unit (Naked version)

    Frame wheelbase: 97mm

    Motor: Defender20 1204 motors

    Prop: Defender20 2020-3 props

    Takeoff Weight incl. 900mAh battery: 178g

    Dimensions (L×W×H):135x136x52mm

    Max Speed: 75Km/H (Manual Mode)

    Maximum Takeoff Altitude: 2000 m

    Max Hover Time: Approx. 7.5 mins(with 3S 900mAh battery)

    Max Wind Speed Resistance: Level 3

    Operating Temperature Range: -10° to 40° C (14° to 104° F)

    Antennas: Dual Antennas

    GNSS: N/A

    Video Transmission:

    Product Name: Naked DJI O3 Air Unit

    Communication Bandwidth: Max 40 MHz

    FOV (single screen): 155°

    Communication Frequency: 2.400-2.4835 GHz (RX only);5.725-5.850 GHz(RX and TX)

    End-to-End Latency

    With DJI FPV Goggles V2:

    810p/120fps Video Transmission Quality: The latency is lower than 28 ms.

    810p/60fps Video Transmission Quality: The latency is lower than 40 ms.

    With DJI Goggles 2:

    1080p/100fps Video Transmission Quality: The latency is as low as 30 ms.

    1080p/60fps Video Transmission Quality: The latency is as low as 40 ms.

    Max Video Transmission Bitrate: 50 Mbps

    Max Video Transmission Range:10 km (FCC), 2 km (CE), 6 km (SRRC)

    Operating Temperature Range: -10º to 40º C (14° to 104° F)

    Power Input: 7.4-26.4 V

    Audio Transmission: N/A

    FPV Radio:

    Product Name: Commando 8 ELRS Lite Radio

    Weight: 275g (±10g)

    Communication Frequency: 5.725-5.850 GHz

    Transmission Power(EIRP):

    2.4GHz: FCC: 27 dBm; CE: <14 dBm; SRRC: <19 dBm

    Operating Current/Volts:  0.6 A @ 7.6 V

    Charging Time: 1 hour and 30 mini

    Operating Time: Approx. 8 hours

    Operating Temperature Range: 0°C  to  40°C(32°F to 104°F)

    Charging Temperature Range: 5°C to  40°C(41°F to 104°F)

    FPV Goggles:

    Product Name: DJI Goggles 2

    Weight: Approx. 290 grams(headband included)

    Dimensions (L×W×H): L167 * W1039 * H 813mm

    Screen Size (single screen): 0.49-inch

    Resolution (single screen): 1920×1080

    Refresh Rate: Up to 100 Hz

    Interpupillary Distance Range: 56-72 mm

    Diopter Adjustment Range: -8.0 D to +2.0 D

    FOV (single screen): 51°

    Communication Frequency: 2.400-2.4835 GHz;5.725-5.850 GHz

    Transmission Power (EIRP):

    2.4 GHz: < 30 dBm (FCC), < 20 dBm (CE/SRRC/KC)

    5.8 GHz [4]: < 30 dBm (FCC), < 23 dBm (SRRC), < 14 dBm (CE/KC)

    Max Video Transmission Bitrate: 50 Mbps

    Operating Temperature Range: 0° to 40° C (32° to 104° F)

    Power Input: 7-9 V (1.5 A)

    Packing List:

    1 x Defender 20 O3 HD BNF

    1 x Commando 8 ELRS Lite Radio

    1 x DJI Goggles 2

    1 x Defender 20 900mAh Battery

    1 x Charging Adapter Board

    4 x Defender 2020 Props (pairs)

    1 x Propeller Removal Tool

    1 x PD30W Charger

    1 x Type C Digital Display Charge Cable

    1 x Defender 20 Carrying Case


    All iFlight BNFs are tested before shipment to guarantee the highest quality.

    If you still encounter a problem after receiving your shipment, please immediately contact our iFlight customer support at


    1. iFlight products may be used for civilian purposes only and any direct or indirect use of iFlight products for or in connection with the following is prohibited:

    (1)Any military combat purpose or military combat related use;

    (2)Terrorist activities: The purchaser also shall require its customers or end users to comply with the foregoing requirements.

    2. If party A has violated applicable export control or economic sanctions laws and regulations, Party B has the right to immediately suspend delivery of products to Party A or terminate relevant cooperation without any liability.