Firefly 20 PRO & 25 MINI is Flywoo's First Modular 3S-4S O4 PRO Ecosystem. The Flywoo Firefly series redefines micro drone versatility with its revolutionary "One VTX, Two Frames" modular system. Engineered for pilots who demand both cinematic endurance and high-speed freestyle, this ecosystem allows you to transplant the entire DJI O4 PRO digital VTX between the 25MINI (3S Cinematic) and 20PRO (4S Performance) frames in under 3 minutes using only 4 screws—completely solder-free. While the Firefly 25MINI excels in long-range efficiency (up to 12 minutes flight time), the Firefly 20PRO is a bando-basher capable of speeds exceeding 120km/h. Equipped with a custom anti-vibration gimbal adjustable from 0° to 25°, it ensures jello-free, high-speed footage that was previously impossible for micro-class drones.
Features:
- Seamless VTX swap between two drones, no re-soldering or calibration
- Factory pre-tuned PID, 120km/h max speed, no prop wash
- High-strength carbon fiber frame, reinforced front arm for crash resistance
- Built-in buzzer, one-click trigger to find lost drone easily
- Solder-free VTX+Buzzer+RX+GPS, plug-and-play, easy for beginners
- Shock-absorbing gimbal ：0°–25° adjustable lens angle; eliminates vibration and jelly effect for stable, clear footage.
Specifications:
- Video Transmission System: DJI O4 Pro
- Receiver: ELRS 2.4GHz
- Weight: 113.5g
- Flight Controller MCU: STM32F405
- AIO: Goku F405 SE 3-4S 20A AIO
- Gyroscope: ICM42688-P / MPU6000
- Black Box: 8MB
- Motor: ROBO 1303 6000KV
- Props: 2520-3 3-Blade 1.5mm Shaft
- Battery Connector: XT30
- Voltage Input: 3S LiHV Recommended - 450mAh / 750mAh/1000mAh
- Flight Time (Data Based on DJI O4 Pro VTX Setup): 1000mAh - 12 min 30 s, 750mAh - 9 min 30 s, 550mAh - 8 min
- Throttle (Data Based on DJI O4 Pro VTX Setup): 1000mAh - 27%, 750mAh - 26%, 550mAh - 25%
- Max Speed: Approximately 95km/h
- Core Applicable Scenarios: Long-endurance freestyle and racing, travel photography/videography
Breaking the Mold - Swap your VTX in seconds
Just 4 screws.
Why build twice? We engineered the top plate to house the entire digital VTX and antenna system, keeping the powertrain bolted to the bottom. No re-soldering.
In under 3 minutes, transplant your Digital VTX to the other frame. Go from a 3S cinematic cruiser to a 4S bando basher effortlessly.
Includes:
1x Flywoo Firefly 25 Mini O4 Pro 3S Micro Drone
1x Hex Wrench
1x ND Filter
2x 10*130mm Battery Straps
2x Plastic Protective Side Panel
1x M2*6.6mm Shock Absorbing Ball
5x Washers
1x Screw Kit