Flywoo Explorer LR 4 O4 Wide Sub250 4-inch Micro Long Range FPV Drone, DJI O4 Air Unit, 4K/1080P

Overview

The Flywoo Explorer LR 4 O4 is a sub-250 class micro long range FPV drone built around the DJI O4 Air Unit for HD digital video transmission and onboard recording. It is designed for portable FPV cruising with GPS positioning and return functions, while keeping the airframe compact and lightweight.

Key Features

• DJI O4 Air Unit for transmission + camera (listed as both Transmission and Camera)
• Recording: 4K/60fps (stated)
• Latency: as low as 20 ms (stated), <20 ms (stated)
• O4 unit weight: <11 g (stated)
• GPS: GOKU GM10 Mini V3 GPS; supports GPS/GLONASS/Galileo/BeiDou/QZSS/SBAS and tracks up to 30 satellites (stated)
• Positioning & return: 30-second cold start; one-key return with remote-triggered homepoint lock to help prevent loss (stated)
• Electronics stack: Goku F722 mini Stack (listed); GOKU F722 Pro Mini V2 FC | 45A 32-bit ESC (stated)
• Flight controller features (stated): plug-and-play compatibility (O4 PRO / Receiver / Camera / LED / GPS); electronic switch 10V enable/disable 10V power via Betaflight to prevent overheating; 20 x 20 mm ultra-compact stacked design
• Finder (stated): FLYWOO Finder V1.0 power-loss alarm + long-range tracking; 100 dB buzzer + LED white light; auto-triggered sound/light alarm 30 seconds after power loss; 5-hour standby built-in battery for prolonged tracking
• Endurance (stated): 25-minute extended endurance (classic configuration); also stated 25–30 minutes in ideal conditions with Explorer 18650 3000 mAh battery
• Power system (stated): NIN 1404 V2 2750KV motors + 4024 props; 2750KV high efficiency with 30% lower power consumption during cruising (stated); 4024-2 blades reduce vortex interference and noise by 25% (stated)
• Transmission range notes (stated): 20 km transmission range (FCC) is listed; DJI O4 Pro Air Unit claims 15 km (FCC); practical range for the 4-inch Explorer LR 4 is stated as 3–5 km under ideal conditions
• Stabilization note (stated): Explorer LR 4 O4 & O4 Wide versions do not support RockSteady; only Gyroflow is supported

Specifications

Weight Comparison (stated)

• O4: 154.0 g
• O4 Pro: 177.8 g
• O4 Wide: 159.3 g

What’s Included

• 1 x Explorer LR 4 O4
• 1 x Flywoo O4 ND Filter
• 8 x Gemfan 4024-2 (Black)
• 2 x Battery strap 15 x 180 mm
• 1 x Set of screws

Notes on O4 Filters & Protective Case

• Flywoo DJI O4 UV ND Filters (stated): ultra-lightweight, AGC optical glass for scratch/smudge/oil resistance; snap-on precision design for secure installation.
• Purchase note (stated): “Need to be purchased separately, not included in the product accessories.”
• O4 customized shell and filters (stated): protective case colors: black/yellow/red/purple; filters including ND4/8/16/CPL; camera size becomes 18 mm after installing the protective case; compatible with Flywoo O3 lite frames including Flylens 75 O3 lite, Flylens 85, Flytimes 85, Flybee 16, Flybee 20.

FAQ

• Why is RockSteady 3.0 not recommended? The O4 Air Unit gyroscope is extremely sensitive to vibrations. Enabling in-camera stabilization (such as RockSteady 3.0) may cause abnormal shaking or distortion due to vibration feedback overload; only unstabilized video can be recorded (stated).
• What’s the difference between the O4 and O3 versions? The only difference is the camera mount; the O4 PRO version is optimized for the DJI O4 Pro Air Unit (stated).
• What’s the practical transmission range? DJI O4 Pro Air Unit claims 15 km (FCC), but the 4-inch Explorer LR 4 realistically achieves 3–5 km under ideal conditions (stated).
• Does the goggles view or recorded footage have jelly effect? “Zero jelly effect” in both goggles view and recordings (stated).
• Does it record 4K video? Yes: 4K/60fps via the DJI O4 Pro Air Unit (stated).
• Flight time with Explorer 18650 3000 mAh battery? 25–30 minutes in ideal conditions (stated).
• Beginner-friendly? Yes: intuitive controls and stabilization (stated).
• GPS accuracy? GOKU MINI GPS V3 (up to 30 satellites) ensures precise navigation (stated).
• Weight with Explorer 4S 750 mAh battery? Under 250 g (stated).
• Compatible with Crossfire/ELRS? Yes: supports Crossfire, ELRS, and SBUS (stated).
• Video transmission latency? Ultra-low latency for real-time control (stated).
• Professional use? Listed as 4K/120fps, 3–5 km range, and 30-satellite GPS (stated).

Documentation

Gyroflow tutorial (stated): https://youtu.be/S6NC-Dz0SUA?si=x7haAazuouhlCQ2a

For setup, compatibility, or after-sales support, contact https://rcdrone.top/ or email support@rcdrone.top.

Details

Flywoo Explorer LR 4 O4 Wide sub250 4-inch micro long-range FPV drone with DJI O4 air unit and Flywoo filter options.

The Explorer LR4 O4 Wide setup comes in at 159.3 g, compared with 154.0 g for O4 and 177.8 g for O4 Pro.

The GOKU GM10 Mini V3 GPS supports multi-mode positioning and one-key return for easier long-range navigation.

DJI O4 support is paired with 4K 60fps recording and a claimed under-20ms latency for a responsive FPV view.

The GOKU F722 Pro Mini V2 flight controller stack uses compact 20×20mm mounting and plug-in connectors to simplify wiring for the Explorer LR 4 build.

The Flywoo Finder V1.0 adds a 100dB buzzer and white LED that can auto-trigger about 30 seconds after power loss, with up to 5 hours of standby.

The 1404 V2 motor paired with a 4024 two-blade prop is tuned for extended endurance, with a 25-minute runtime noted on the spec callout.

The DJI O4 camera can be fitted with color protective shells and ND4, ND8, and ND16 filters for different lighting conditions.