2024 Defender 25 FPV Combo – Ultimate Aerial Thrills!


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    After 2 years with the very successful ProTek series, iFlight continues to strive for a better flying experience and performance with the next upcoming innovative step. Let’s meet Defender 25.


    Ultralight & Free to Fly

    At sub 249g weight, our Defender25 doesn’t require registration in most countries. The compact and lightweight design also makes it easy to carry and store. It will be your best travel buddy to redefine your FPV adventure.

    Small But Mighty

    The built-in 2.5inch propeller guards were designed to fly bold. You’ll experience a complete new creative freedom to fly whenever and wherever. The durable injection molded frame does not only prevent damage to your motors or propellers, but also protects the environment of small flight errors.

    4K Stabilized Video with 155°Ultra-Wide Angle

    Equipped with the latest tech from DJI, the O3 Air Unit HD transmission system. The Defender25 supports 4K video and shoots up to 155°super-wide FOV footage for stunning visuals. In addition, D-Cinelike color mode provides more creative freedom for color grading, allowing you to edit and adjust your footage. (Source DJI)

    We’ve also added a special vibration-damped 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.

    Crash Protected Quick-Release Battery

    New innovative quick-release battery and charging adapter to make everything as easy as it can be. The Defender25 comes with a stock 4S 550mAh. An Endurance 900mAh battery is optional.

    Inbuilt high-performance Video and Receiver antennas

    Optimized Landing Gear for Take-off in Complex Environment

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

    1) Secured XT30 Battery Plug with Anti-Spark Filter

    2) Motors with direction arrows

    3) Props with positioning column for easy installation

    4) All ports and buttons are easy to access

    5) Mini camera mount (Naked GoPro, Insta360, etc.)


    Product Name: Defender25 O3 4S HD

    Flight Electronics: BLITZ D25 F7 AIO

    Video Transmission: DJI O3 Air Unit

    Frame: 112±2mm

    Motor: Defender25 1404

    Prop: Defender25 2525 props

    Weight of the Aircraft: 170g

    Takeoff Weight incl. 550mAh battery: ≤249g

    Takeoff Weight incl. 900mAh battery: ≤280g

    Dimensions (L×W×H):158x155x69mm

    Max Ascent Speed: 6 m/s (Normal Mode, Sport Mode)

    Max Descent Speed: 6 m/s (Normal Mode, Sport Mode)

    Max Speed: 100Km/H (Manual Mode)

    Maximum Takeoff Altitude: 3000m (with 550mAh), 3500m (with 900mAh

    Max Hover Time: Approx. 6 mins (with 550mAh), 10mins (with 900mAh)

    Max Flight Distance: 2-3 km

    Max Wind Speed Resistance: Level 4

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

    Transmission Power (EIRP): FCC: < 33 dBm / CE: < 14 dBm / SRRC: < 30 dBm

    Antennas: Dual Antennas

    GNSS: GPS+SBAS+Galileo+QZSS+Glonass

    Video Transmission:

    Product Name: DJI O3 Air Unit

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

    Communication Bandwidth:  Max 40 MHz

    Live View Quality and Latency

    With DJI FPV Goggles V2:

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

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

    With DJI Goggles 2:

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

    1080p/60fps Video Transmission Quality: The video transmission 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)

    Audio Transmission: N/A

    FPV Radio:

    Product Name: Commando 8 ELRS Radio

    Weight: 310g (±10g)

    Dimentions(LxWxH): L 190 x W 150 x H 51mm

    Communication Frequency: 5.725-5.850 GHz

    Transmission Power(EIRP):

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

    915MHz:FCC: 30 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 Integra

    Weight: Approx. 410 grams(battery included)

    Dimensions (L×W×H): L170 * W104 * H 75mm

    Screen Size (single screen): 0.49-inch

    Resolution (single screen): 1920×1080

    Refresh Rate: Up to 100 Hz

    Interpupillary Distance Range: 56-72 mm

    FOV (single screen): 44°

    Video Recording Format: MOV

    Supported Video Playback Formats: MP4, MOV (video formats: H.264, H.265; audio formats: AAC, PCM)

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

    Transmitter Power (EIRP)

    2.4000-2.4835 GHz:

    < 30 dBm (FCC)< 20 dBm (CE/SRRC/MIC/KC)

    5.725-5.850 GHz:

    < 30 dBm (FCC)< 23 dBm (SRRC)< 14 dBm (CE/KC)

    Max Video Transmission Bitrate: 50 Mbps

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

    Recommended Charger:

    Charger not included in combos, and sold separately.

    To ensure charging speed, it is recommended to use Flight PD 100W Charger or PD 30W Charger, or other USB chargers that support USB PD and QC fast charging protocols.

    Packing List:

    1 x Defender25 O3 HD BNF

    1 x Commando 8 ELRS Radio

    1 x DJI Goggles Integra

    1 x Defender25 550mAh Battery

    1 x Charging Adapter Board

    2 x Defender 2525 Props (pairs)


    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


    If GPS needs to be installed, the order will be shipped 3-5 days later!

    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.


    What is the startup and shutdown process of GPS rescue mode?

    1. Turn on the GPS rescue mode through the remote control. After the drone flies back, flip the switch to turn off the mode.

    2. If the drone has automatically triggered the GPS rescue and you want to take over manually after flying back, you need to toggle any joystick on the left or right to take over, instead of flipping the GPS rescue switch.