---
product_id: 256250489
title: "FX3-ultimate 5.8GHz 25/200/400/600mW Switchable Mini VTX, OSD Configuring via Betaflight, Supports Pit Mode, MMCX+UFL Connector, Smart Audio Compatibility"
brand: "akk"
price: "191.82 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Akk"
url: https://www.desertcart.tn/products/256250489-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable-mini
store_origin: TN
region: Tunisia
---

# 7-24V wide input range 4 power levels up to 600mW OSD config via Smart Audio FX3-ultimate 5.8GHz 25/200/400/600mW Switchable Mini VTX, OSD Configuring via Betaflight, Supports Pit Mode, MMCX+UFL Connector, Smart Audio Compatibility

**Brand:** akk
**Price:** 191.82 DT
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your FPV game with power, precision, and pro-level control!

## Quick Answers

- **What is this?** FX3-ultimate 5.8GHz 25/200/400/600mW Switchable Mini VTX, OSD Configuring via Betaflight, Supports Pit Mode, MMCX+UFL Connector, Smart Audio Compatibility by akk
- **How much does it cost?** 191.82 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/256250489-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable-mini)

## Best For

- akk enthusiasts

## Why This Product

- Trusted akk brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Lightweight Design:** At just 5.4g and 26x26mm, this mini VTX fits perfectly on any build without weighing you down.
- • **Pit Mode & Zero Interference:** Instantly switch to Pit Mode for silent setup and enjoy ultra-fine 0.01mW power adjustments to avoid signal clashes.
- • **Universal Voltage Compatibility:** Supports a broad 7-24V input range with stable 5V output for your camera, ensuring compatibility with diverse setups.
- • **Power Your Flight with Precision:** Switch effortlessly between 25mW, 200mW, 400mW, and 600mW to match your race or freestyle needs.
- • **Seamless Smart Audio Integration:** Configure channels, bands, and power settings on the fly with intuitive OSD controls—no more fumbling with buttons.

## Overview

The AKK FX3-ultimate is a compact 5.8GHz video transmitter designed for professional FPV pilots, offering switchable power levels from 25mW to 600mW, wide 7-24V input compatibility, and advanced OSD configuration via Smart Audio. Its lightweight design and pit mode functionality make it ideal for competitive racing and freestyle flying, delivering crystal-clear transmission with minimal interference.

## Description

Features: SUPPORT Pit Mode 7-24V input, 5V output for your camera 25mW/200mW/400mW/600mW power switchable 0.01mW parameter-adjusting Mode, power with zero interference MMCX+UFL connector, One button setup channel/band/power With MIC, OSD configuration using Smart audio Specifications: Input voltage: 7V-24V Power supply: 5V Camera @ under 0.3A max. Output power: 25mW: 100mA 200mW: 200mA 400mW: 250mA 600mW: 320mA @12V Range: Up to 2 km with omnidirectional RHCP antennas Port connector: Solder Pads Antenna connector: MMCX/U.FL Dimensions: 26(W)x26(D)mm,20x20mm(hole) Weight:5.4g(excluding antenna) Package includes: 1x FX3-ultimate 1x Cable 1x MMCX Antenna 1x Product manual Notice: 5645,5925,5945(E4,E7,E8) channels are not available due to FCC regulation. Selecting 5645/5925/5945(E4/E7/E8) will be invalid action. Please read the Info before purchasing. Due to the equipment need being sold under the FCCs amateur radio rules. This product requires an amateur radio license to operate legally in the US. Operators must abide by all applicable laws and hold an amateur license to operate this equipment. Use of amateur equipment without a license could subject the operator to significant fines by the FCC.

Review: Using this vtx on a 4 inch long range build and it has crystal clear transmission, especially when paired with the caddx ratel camera I'm using it with. The vtx table was easy to setup and the smart audio works without issue.
Review: Don’t waste your money on this there is way better out there at the same price.

## Features

- 7 24V input, 5V output for your camera
- 25mW/200mW/400mW/600mW power switchable
- With MIC, OSD configuration using Smart audio
- MMCX+UFL,Solder Pads connector, One button setup channel/band/power
- 0.01mW parameter adjusting Mode, power with zero interference.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DYL677Z |
| Additional Features | Smart Audio Compatibility |
| Amperage | 0.3 Milliamps |
| Brand | AKK |
| Built-In Media | Camera, Product Manual |
| Compatible Devices | Cameras |
| Compatible Phone Models | iPhone series, Samsung Galaxy series, and other 5V-charging-capable smartphones |
| Connectivity Technology | MMCX+UFL |
| Connector Type | MMCX+UFL |
| Current | DC |
| Current Rating | 320 Milliamps |
| Customer Reviews | 4.0 4.0 out of 5 stars (92) |
| Enclosure Material | FX3-ultimate |
| Frequency Range | 5.8GHz |
| Input Voltage | 24 Volts |
| Item Weight | 41 g |
| Main Power Connector Type | 2 pin |
| Manufacturer | AKK |
| Mfr Part Number | FX3-ultimate |
| Model Number | FX3-ultimate |
| Mounting Type | Tabletop Mount |
| Number of Items | 1 |
| Number of Power Levels | 4 |
| Output Current | 9 Amps |
| Output Voltage | 5 Volts |
| Portable | Yes |
| Power Plug | No Plug |
| Power Source | DC |
| Specification Met | FCC |
| Total Usb Ports | 1 |
| Wattage | 45 watts |

## Product Details

- **Amperage:** 0.3 Milliamps
- **Brand:** AKK
- **Compatible devices:** Cameras
- **Compatible phone models:** iPhone series, Samsung Galaxy series, and other 5V-charging-capable smartphones
- **Connector type:** MMCX+UFL
- **Included components:** Camera, Product Manual
- **Input voltage:** 24 Volts
- **Special features:** Smart Audio Compatibility
- **Total USB ports:** 1
- **Wattage:** 45 watts

## Images

![FX3-ultimate 5.8GHz 25/200/400/600mW Switchable Mini VTX, OSD Configuring via Betaflight, Supports Pit Mode, MMCX+UFL Connector, Smart Audio Compatibility - Image 1](https://m.media-amazon.com/images/I/61EgoNkMuqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***. on 3 August 2025*

Using this vtx on a 4 inch long range build and it has crystal clear transmission, especially when paired with the caddx ratel camera I'm using it with. The vtx table was easy to setup and the smart audio works without issue.

### ⭐ Review
*by M***2 on 24 July 2022*

Don’t waste your money on this there is way better out there at the same price.

### ⭐ Review
*by C***N on 5 April 2020*

Does not working with smartaudio otherwise works ok

## Frequently Bought Together

- AKK FX3-ultimate 5.8GHz 25mW/200mW/400mW/600mW Switchable Mini VTX Support OSD Configuring via Betaflight
- SoloGood Caddx Ant FPV Camera 1200TVL Global WDR OSD 1.8mm Nano FPV Camera 16:9 NTSC PAL for RC FPV Cinewhoop Tinywhoop Drone
- SpeedyBee F405 Mini Flight Controller Stack board 3-6S 20x20mm Built-in Bluetooth with 35A BLHeli_S 4in1 ESC Board Support Wireless Tuning

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**Shop now:** [https://www.desertcart.tn/products/256250489-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable-mini](https://www.desertcart.tn/products/256250489-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable-mini)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-08*