Hummingbird RaceSpec v2 AIO Flight Controller

Flight Controller Spec:

MCU: AT32F4
GYRO：42688
VTX: True 25mw and up to 400mw SmartMax 5.8g Analog VTX
ESC: 18A pre-flashed with Bluejay 0.19.2 48kHz
ESC Connector: direct solder Pad Recommend Whoop RaceWire
OSD: NBD7456 graphical OSD compatible with Betaflight OSD Perfect Edition
Receiver: Uart ExpressLRS 2.4G with SMT Antenna (ESP8285)
Flight Controller Weight: 4.71g (Include antennas and battery connector) 
Flight Controller Size: Outer dimensions: 29x29x7.6mm
Flight Controller Holes: 25.5x25.5mm
Battery input: 1S Only（Recommend  300mAh 1S 3.8V）
Uart1:free
Uart2:free
Power Plug:  GNB A30 Connector compatible with BT2.0

Binding Instruction: Since its UART base, you plug in battery 3times to trigger the bind mode or power on wait for 60seconds to get into wifi mode and input your bind phase)

⚠️ Important Notice – Read Before Purchase

WARNING: THIS IS NOT A TOY — FOR EXPERIENCED FPV RACERS ONLY

The Hummingbird Whoop RaceSpec V2 BNF Drone is a high-performance racing drone built exclusively for professional FPV pilots. It is engineered for extreme speed, precision, and agility, and should be treated like a race car—not a beginner-friendly vehicle.

If you’re new to FPV or unsure of your piloting skills, this product is not for you.

User Guide download （scan code below）

Warranty & Support Terms

• Warranty covers DOA (Dead on Arrival) units only.

• To qualify for warranty, the drone must be returned in unused, unmodified, and undamaged condition—free from crashes, scratches, missing parts, or soldering modifications.

• Physical crash damage, pilot error, or misuse is not covered under any circumstance.

Each RaceSpec unit is hand-assembled and fully tested by our in-house pilots before shipping. The likelihood of receiving a defective unit is extremely low.

We cannot absorb damage costs caused by user crashes, especially given the rising operational costs from recent tariff changes.

If you’re unsure about your ability to fly and maintain a professional racing drone, we strongly recommend choosing a more beginner-friendly model Hummingbird V4 Standard Version..

✅ By purchasing this product, you confirm that:

• You are an experienced FPV pilot.

• You understand and accept the terms above.

• You agree that any damage caused by use—including crashes—is solely your responsibility.

If you do not agree with these terms, please do not purchase this product.

We appreciate your understanding and support. Let’s keep the skies fast and clean.