Defender 25 HD BNF DJI O3 4S Air Unit (ELRS 868/915 MHz)
Function:
- Ultralight and free-flying. Compact and lightweight design makes it easy to carry and store.
- Built-in 2.5 inch propeller covers were designed to fly boldly. Durable injection-molded frame prevents damage to engines and propellers.
- Equipped with the O3 Air Unit HD system. Defender25 supports 4K video and shoots up to 155° super wide FOV footage for stunning visual effects.
- Quick-release battery with shock protection. The Defender25 comes with a 4S 550mAh battery.
- Built-in high performance video and receiver antennas.
- Optimized landing gear for takeoff in difficult environments.
- Secure XT30 battery plug with Anti-Spark filter.
- Motors with directional arrows.
- Supports with positioning post for easy installation.
- All ports and buttons are easily accessible.
- Mini camera holder (Naked GoPro, Insta360, etc.)
- BLITZ SPLIT GPS Preinstallation.
Specifications:
Product Name: Defender25 O3 4S HD
Receiver option: iFlight ELRS 868/915 MHz
Flight electronics: BLITZ D25 F7 AIO
Video transmission: DJI O3 Air Unit
Frame: 112±2 mm
Engine: Defender25 1404
Prop: Defender25 2525 Props (2.5 inches)
Aircraft weight: 180g
Maximum take-off weight incl. 550 mAh battery: ≤ 249 g
Maximum take-off weight incl. 900mAh battery: ≤280g
Dimensions (LxWxH): 158 x 155 x 69 mm
Maximum output speed: 6 m/s (normal mode, sports mode)
Maximum Descent Speed: 6m/s (Normal Mode, Sport Mode)
Maximum speed: 100 km/h (manual mode)
Maximum take-off altitude: 3000m (with 550mAh battery), 3500m (with 900mAh battery)
Maximum Hover Time: Approx. 6 minutes (with 550 mAh battery), 10 minutes (with 900 mAh battery)
Maximum flight distance: 2-3 km
Maximum resistance to wind speed: 80 km/h (level 5)
Operating Temperature Range: -10° to 40° C (14° to 104° F)
Transmit Power (EIRP): FCC: < 33 dBm / CE: < 14 dBm / SRRC: < 30 dBm
Antennas: Dual antennas
GNSS: GPS+SBAS+Galileo+QZSS+Glonass
Video transfer
Product Name: DJI O3 Air Unit
Weight: Approx. 36.4 grams (including headband)
Communication bandwidth: Max 40 MHz
FOV (single screen): 155°
Communication frequency: 2.400-2.4835 GHz；5.725-5.850 GHz
End-to-End latency
With DJI FPV Goggles V2:
- 810p/120fps video transmission quality: Latency is lower than 28ms.
- 810p/60fps video transmission quality: Latency is lower than 40ms.
With DJI Goggles 2:
- 1080p/100fps video transmission quality: Latency is only 30ms.
- 1080p/60fps video transmission quality: Latency is only 40ms.
Maximum video transfer rate: 50 Mbps
Maximum video transmission range: 10 km (FCC), 2 km (CE), 6 km (SRRC)
Operating temperature range: -10° to 40°C (14° to 104°F)
Power consumption: 7.4-26.4 V
Audio Transmission: N/A
Recommended charger
- The charger is not part of the combo and is sold separately.
- To ensure fast 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.
The package includes:
1 x Defender25 O3 HD BNF (ELRS 868/915 MHz)
1x Defender25 550mAh battery
1 x Board with charging adapter
2 x Defender 2525 Props (pairs)
