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iFlight BNF Defender 25 HD 4S 2.5" Cinewhoop w/ DJI O3 Air Unit and DJI Camera - Choose Receiver

Original price $539.99 - Original price $539.99
Original price
$539.99 - $539.99
Current price $539.99
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Receiver: PNP - DJI
Free Delivery on U.S.A. Orders $99 or more

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All batteries must be shipped by a ground shipping method.

Introducing iFlight's Defender 25, a sub-250 drone featuring the DJI O3 Air Unit. At 249g weight, Defender 25 doesn't require registration in most countries. The compact and lightweight design also make it easy to carry and store. It will be your best travel buddy to redefine your FPV adventure. The built-in 2.5-inch propeller guards were designed to fly boldly. You’ll experience a completely new creative freedom to fly whenever and wherever. The durable injection molded frame not only prevents damage to your motors or propellers but also protects the environment from small flight errors.

Equipped with the latest tech from DJI, the O3 Air Unit HD transmission system, the Defender 25 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. 

They’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 built-in or in-post camera stabilization.

Be sure to check out our Bind-n-Fly collection as well as all of our iFlight Products!


  • Optimized Landing Gear for Take-Off in Complex Environments
  • Built-in High-Performance video and Receiver Antennas
  • 4K Stabilized Video with 155° Ultra-Wide Angle
  • Crash-Protected Quick-Release Battery
  • Countless Easy-to-Use Features
  • Ultralight and Free to Fly
  • Small and Mighty


Defender 25

  • Product Name: Defender 25 4S HD
  • Flight Electronics: BLITZ D25 F7 AIO
  • Video Transmission: DJI O3 Air Unit
  • Frame: 112±2mm
  • Motor: Defender25 1404
  • Prop: Defender25 2525 props (2.5-inch)
  • Weight of the Aircraft: 180g
  • Takeoff Weight incl. 550mAh battery: ≤249g
  • 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: 200 m
  • Max Hover Time: Approx. 6 mins (with 550mAh battery), 10mins (with 900mAh battery)
  • Max Flight Distance: 2-3 km
  • Max Wind Speed Resistance: 80 Km/H (Level 5)
  • 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: N/A

Video Transmission

  • Product Name: DJI O3 Air Unit
  • Weight: Approx. 36.4grams
  • Dimensions (L×W×H): L16.7×W103.9×H 81.3mm
  • 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)

Recommended (Not Included)

  • iFlight Defender 25 Battery - 900mAh


  • 1x iFlight BNF Defender 25 HD 4S 2.5" Cinewhoop w/ DJI O3 Air Unit and DJI Camera (Pre-Built, Tuned, and Tested)
  • 1x Defender 25 550mAh Battery
  • 1x Charging Adapter Board
  • 2x Defender 25 2525 Props (pairs)