IFlight Defender 20 HD 3S BNF Micro FPV Drone (ELRS 868/915MHz) with DJI O3 Air Unit

Introduction

The iFlight Defender 20 HD 3S BNF is a revolutionary micro FPV drone designed for ultimate portability and performance. Small enough to fit in your palm, this compact quadcopter is built for pilots who demand agility and high-quality aerial footage on the go. It integrates the advanced DJI O3 Air Unit for crystal-clear HD video transmission and utilizes ELRS 868/915MHz for robust radio control, making it a top choice for modern FPV enthusiasts.

Key Advantages

• Ultra-compact, palm-sized design for maximum portability.
• Durable, injection-molded frame ensures resilience during flights and crashes.
• Integrated DJI O3 Air Unit provides stunning HD video quality and low latency.
• Reliable ELRS 868/915MHz receiver for stable, long-range control.
• Convenient one-button functional power switch with programmable RGB status LEDs.
• Innovative 3S 900mAh battery with auto-discharge function for safety and ease of use.
• Easy maintenance with a design that requires only 6 screws for disassembly.
• Built-in buzzer for quick drone recovery after accidental loss.
• Plug-and-play AIO flight controller with enhanced redundancy for demanding operations.

Technical Specifications

• Product Name: Defender 20 O3 3S HD
• Receiver Option: iFlight ELRS 868/915MHz
• Flight Controller: Defender 16/20 F411 AIO
• Video Transmission: DJI O3 Air Unit (naked version)
• Frame Wheelbase: 97mm
• Motor: Defender20 1204 Motors
• Propeller: Defender20 2020-3 Propellers
• Takeoff Weight (with 900mAh battery): 178g
• Dimensions (L×W×H): 135x136x52mm
• Max Speed: 75 km/h (Manual mode)
• Max Altitude: 2000m
• Max Hover Time: Approx. 7.5 minutes (with 3S 900mAh battery)
• Max Wind Resistance: Level 3
• Operating Temperature: -10° to 40° C
• Antennas: Dual Antennas
• GNSS: Not Applicable
• Video Transmission Bandwidth: Max 40MHz
• FOV (Single Screen): 155°
• Communication Frequency: 2.400-2.4835 GHz (RX only); 5.725-5.850 GHz (RX & TX)
• End-to-End Latency (DJI FPV Goggles V2): <28ms (810p/120fps), <40ms (810p/60fps)</li>
• End-to-End Latency (DJI Goggles 2): <30ms (1080p/100fps), <40ms (1080p/60fps)</li>
• Max Video Bitrate: 50 Mbps
• Max Video Transmission Range: 10 km (FCC), 2 km (CE), 6 km (SRRC)
• Video Input Power: 7.4-26.4 V
• Audio Transmission: Not Applicable
• Recommended Charger: USB PD/QC compatible charger (e.g., PD 100W or PD 30W, sold separately)

Applications

The iFlight Defender 20 HD is ideal for FPV freestyle flying, cinematic micro FPV videography, exploring tight spaces, and general FPV practice. Its compact size and high-quality video make it suitable for capturing unique aerial shots in various environments.

Compatibility

This BNF (Bind-and-Fly) drone is compatible with ELRS 868/915MHz radio transmitters. It requires compatible DJI FPV Goggles (V2 or Goggles 2) for video reception. The battery uses a standard 3S 900mAh configuration. Recommended charging requires a USB PD or QC compatible charger (sold separately).

FAQ

What is the iFlight Defender 20 HD 3S BNF drone best suited for?

The iFlight Defender 20 HD is perfect for micro FPV freestyle, capturing cinematic footage in tight spaces, and general FPV practice due to its palm-sized design and high-quality DJI O3 video transmission.

What radio transmitter is compatible with the Defender 20 HD BNF?

This BNF (Bind-and-Fly) drone comes equipped with an iFlight ELRS 868/915MHz receiver, making it compatible with ELRS radio transmitters. Ensure your transmitter is set to the correct protocol and frequency band.

What are the key video transmission features of the Defender 20 HD?

It features the Naked DJI O3 Air Unit, offering up to 1080p/100fps video transmission with low latency (as low as 30ms with DJI Goggles 2). The maximum video bitrate is 50 Mbps, and the transmission range varies by region.

How long can the Defender 20 HD fly on a single charge?

With the included 3S 900mAh battery, the Defender 20 HD can achieve a maximum hover time of approximately 7.5 minutes. The battery also features a convenient auto-discharge function for safety.

Where can I buy the iFlight Defender 20 HD drone with fast delivery?

You can buy the iFlight Defender 20 HD drone at HTDRONE. We offer fast shipping within Poland and reliable delivery to Ukraine via Nova Poshta. Worldwide shipping is also available via DHL.