iFLight BLITZ Whoop 4.9GHz 2.5W VTX

If you’re after a video transmitter (VTX) that laughs in the face of overheating while delivering crystal-clear FPV transmission, the BLITZ Whoop 4.9G 2.5W VTX is your new best friend. With a CNC cooling casing and an integrated fan for double-duty heat dissipation, this VTX is built for serious FPV enthusiasts who demand reliability under pressure. Boasting up to 2500mW of power across four levels, this beast doesn’t just fly—it soars.

But with great power comes great responsibility! By default, it’s set to 25mW, keeping you legal out of the box. Need more juice? Make sure you’ve got a HAM license and are operating within your local regulations.

With an MMCX interface, intuitive LED indicators, and buttons for fine-tuning bands, channels, and power levels, it’s simple to dial in your preferred settings. Whether you’re cruising at 25mW or going full throttle at 2500mW, this VTX delivers stable, reliable video transmission for your drone adventures.

Attention:

Please read the instructions for proper wiring before use.

It is recommended that before switching on the power, make sure that the antenna has been installed, it can extend the life of the module.

It is recommended to ensure the correct voltage range and the correct positive and negative polarity before switching on the power to avoid burning the components.

Please keep enough space when you install the VTX to ensure air convection around the module for heat dissipation. Otherwise, the module will enable overheat protection and the power transmission will be reduced or even switched off.

Specifications

• Input Voltage: 7V–34V (VBAT: 2–8S)
• Interface: MMCX
• Power Levels: PIT/25mW/400mW/1000mW/2500mW
• Channels: 8
• Mounting Pattern: 25.5×25.5mm/Φ1.6
• Dimensions: 50x30x16mm
• Weight: 32g (light enough for whoop frames)
• Telemetry: None

LED Indicator and Button Features

• Power Button:
  • Hold for 2s: Enter/exit PIT mode (solid green LED).
  • Short press: Adjust output power (green LED flashes 1–4 times).
    • 1 flash = 25mW
    • 2 flashes = 400mW
    • 3 flashes = 1000mW
    • 4 flashes = 2500mW
• Band and Channel Button:
  • Short press: Change channel (blue LED flashes 1–8 times).

Ports

• VBAT (7–34V), GND (negative), Video In/Out, 5V Out, Camera In/Out

What’s in the Box

• 1 x BLITZ Whoop 4.9G 2.5W VTX

Note: Accessories may vary based on availability. Always check before wiring, ensure proper antenna installation, and confirm correct voltage and polarity to avoid any smoky surprises. Heat dissipation is key, so give your module some breathing room!