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.)

Specifications:

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 (2.5 inch)

Weight of the Aircraft: 180g

Maximum Takeoff Mass incl. 550mAh battery: ≤249g

Maximum Takeoff Mass 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 battery), 3500m (with 900mAh battery)

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: GPS+SBAS+Galileo+QZSS+Glonass

Radio Controller:

The 900MHz as well as 2400MHz band have outstanding performance and long range capabilities. If you're not sure what to get, please check out the official ELRS Long Range Competition to see what has been achieved. https://www.expresslrs.org/2.0/info/long-range/

What can I expect? Due to local regulations, the 900MHz FCC region seems to have a better performance than the 868MHz EU region. The 2400MHz band works great in any region, and has a higher packet rate up to 500hz. This is not a common 2400MHz protocol and cannot be compared to anything prior on the market.

RF Power:

2.4GHz system: SX1281

868/900MHz system: SX1276

ExpressLRS 2.4GHz // Max Output 500mW

ExpressLRS 868/900MHz // Max Output 1000mW

Radio Channels: 8

Input: Mini High Precision Digital Hall Gimbals with NMB bearings

Gimbal Stick Ends: Stock length 18mm

Charging: Type-C 20W Quick Charge

Battery: Built-in 4000mAh 1S2P 18650 Battery

Charging Connector: Type-C

Weight: 310g

Packing List:

1x Commando 8 Radio Transmitter ELRS V2

1 x Defender25 O3 HD BNF

1 x Defender25 550mAh Battery

1 x Type-C Charge Adapter

2 x Defender 2525 Props (pairs)

Notice:

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

If you still encounter a problem after receiving your shipment, please immediately contact our iFlight customer support at www.iflightrc.freshdesk.com.