---
product_id: 548128053
title: "SPEEDY BEE F405 Mini Flight Controller Stack board 3-6S 20x20mm Built-in Bluetooth with 35A BLHeli_S 4in1 ESC Board Support Wireless Tuning"
brand: "speedy bee"
price: "€ 41.32"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.gr/products/548128053-speedy-bee-f405-mini-flight-controller-stack-board-3-6s
store_origin: GR
region: Greece
---

# 35A 4-in-1 BLHeli_S ESC power Built-in Bluetooth wireless tuning 20x20mm compact stack size SPEEDY BEE F405 Mini Flight Controller Stack board 3-6S 20x20mm Built-in Bluetooth with 35A BLHeli_S 4in1 ESC Board Support Wireless Tuning

**Brand:** speedy bee
**Price:** € 41.32
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Fly smarter, not harder — the ultimate mini stack for next-level drone pros!

## Quick Answers

- **What is this?** SPEEDY BEE F405 Mini Flight Controller Stack board 3-6S 20x20mm Built-in Bluetooth with 35A BLHeli_S 4in1 ESC Board Support Wireless Tuning by speedy bee
- **How much does it cost?** € 41.32 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/548128053-speedy-bee-f405-mini-flight-controller-stack-board-3-6s)

## Best For

- speedy bee enthusiasts

## Why This Product

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

## Key Features

- • **DJI Air Unit Ready:** Fully supports DJI Air Unit O3, Link, and Vista for seamless integration with top-tier FPV systems.
- • **Compact Yet Compatible:** Ultra-mini 20x20mm footprint fits M2 and M3 mounts, perfect for sleek, lightweight drone frames.
- • **Smart Flight Management:** Onboard battery life indicators and blackbox storage keep you informed and in control during every flight.
- • **Power-Packed Performance:** Robust 35A 4-in-1 ESC delivers reliable power for 2-4 inch and ultra-light 5-inch drones, pushing your builds to the next level.
- • **Effortless Wireless Tuning:** Configure your flight controller and ESC seamlessly via the SpeedyBee app—no cables, no hassle.

## Overview

The SPEEDY BEE F405 Mini Flight Controller Stack is a compact 20x20mm board featuring a powerful 35A 4-in-1 BLHeli_S ESC and built-in Bluetooth for wireless tuning via the SpeedyBee app. Designed for 2-4 inch and ultra-light 5-inch drones, it supports M2/M3 mounting, dual BEC outputs, onboard battery indicators, blackbox logging, and compatibility with DJI Air Unit O3/Link/Vista, making it a versatile and high-performance choice for professional drone builders.

## Description

desertcart.com: SPEEDY BEE F405 Mini Flight Controller Stack board 3-6S 20x20mm Built-in Bluetooth with 35A BLHeli_S 4in1 ESC Board Support Wireless Tuning : Toys & Games

Review: Can't go wrong with SpeedyBee - love speedybee, Its a bit hard to solder since it's a mini board but i was able to manage, definitely should've gotten a normal size stack specially since this was my first time building but i was able to manage, just get a practice board or take your time and get a good soldering iron and flux! DO NOT underestimate having flux and a good soldering iron that gets to the right temp. i also love that speedybee has a wifi module on them so you don't need to use a USB and wirelessly connect to the their app that's basically betaflight
Review: Great all in one - This was my first drone build. This package kicks butt. Be sure to run the capacitor where they recommend it. Very straight forward. I have purchased a few.

## Features

- 【Efficient Configuration & Performance】: The SpeedyBee F405 Mini 35A Stack offers wireless FC & ESC configuration via the SpeedyBee app and a powerful 35A 4-in-1 BLHeliS ESC. Ideal for 2-4 inches and ultra-light 5-inch, this stack is proven for strong performance.
- 【User-Friendly Features】: Equipped with onboard battery life indicators, blackbox storage, and the ability to change motor directions wirelessly, this product ensures a convenient and seamless flying experience.
- 【Flexible Compatibility & Power】: Compatible with both M2 and M3 installation holes, and providing 5V 2A & 9V 3A dual BECs, the SpeedyBee F405 Mini Stack offers adaptable power options for various setups.
- 【Air Unit Support】: With compatibility for DJI Air Unit O3 / Link / Vista, this flight stack ensures integration with popular systems, enhancing your flight capabilities.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CF1X3N5V |
| Are Batteries Included | No |
| Battery Cell Composition | Lithium Polymer |
| Best Sellers Rank | #341,041 in Toys & Games ( See Top 100 in Toys & Games ) #448 in Radio Control Vehicle Speed Controls |
| Brand | SPEEDY BEE |
| Color | black |
| Connectivity Technology | Bluetooth |
| Control Type | Remote Control |
| Customer Reviews | 4.5 4.5 out of 5 stars (62) |
| Date First Available | August 8, 2023 |
| Included Components | / |
| Item Weight | 0.353 ounces |
| Manufacturer | SpeedyBee |
| Model Name | SpeedyBee F405 Mini BLS 35A 20x20 Stack |
| Optical Sensor Technology | CMOS |
| Product Dimensions | 0.39 x 0.39 x 0.39 inches; 0.35 ounces |
| Rechargeable Battery Included | No |
| Remote Control Included? | No |
| Remote Control Technology | Bluetooth |
| Special Feature | Wireless |
| Video Capture Format | MP4 |
| Video Capture Resolution | 4K |
| Wireless Communication Technology | Bluetooth |

## Images

![SPEEDY BEE F405 Mini Flight Controller Stack board 3-6S 20x20mm Built-in Bluetooth with 35A BLHeli_S 4in1 ESC Board Support Wireless Tuning - Image 1](https://m.media-amazon.com/images/I/31zexpCMfnL.jpg)
![SPEEDY BEE F405 Mini Flight Controller Stack board 3-6S 20x20mm Built-in Bluetooth with 35A BLHeli_S 4in1 ESC Board Support Wireless Tuning - Image 2](https://m.media-amazon.com/images/I/41GFdC9hZ4L.jpg)
![SPEEDY BEE F405 Mini Flight Controller Stack board 3-6S 20x20mm Built-in Bluetooth with 35A BLHeli_S 4in1 ESC Board Support Wireless Tuning - Image 3](https://m.media-amazon.com/images/I/41YgJj+hSvL.jpg)
![SPEEDY BEE F405 Mini Flight Controller Stack board 3-6S 20x20mm Built-in Bluetooth with 35A BLHeli_S 4in1 ESC Board Support Wireless Tuning - Image 4](https://m.media-amazon.com/images/I/51QiYjGSpZL.jpg)
![SPEEDY BEE F405 Mini Flight Controller Stack board 3-6S 20x20mm Built-in Bluetooth with 35A BLHeli_S 4in1 ESC Board Support Wireless Tuning - Image 5](https://m.media-amazon.com/images/I/51neFIU1y7L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Can't go wrong with SpeedyBee
*by C***A on May 19, 2025*

love speedybee, Its a bit hard to solder since it's a mini board but i was able to manage, definitely should've gotten a normal size stack specially since this was my first time building but i was able to manage, just get a practice board or take your time and get a good soldering iron and flux! DO NOT underestimate having flux and a good soldering iron that gets to the right temp. i also love that speedybee has a wifi module on them so you don't need to use a USB and wirelessly connect to the their app that's basically betaflight

### ⭐⭐⭐⭐⭐ Great all in one
*by B***E on March 18, 2024*

This was my first drone build. This package kicks butt. Be sure to run the capacitor where they recommend it. Very straight forward. I have purchased a few.

### ⭐⭐⭐ Decent budget stack with some trade-offs
*by N***N on September 14, 2025*

The SpeedyBee F405 Mini is a solid option if you’re looking for a budget-friendly stack. The built-in Bluetooth makes wireless tuning super convenient, and it’s nice not having to plug in a USB every time. Performance is decent, and it does the job for smaller builds. That said, it’s not the most durable stack out there and feels more like an entry-level option. Good for the price, but if you want something long-lasting or heavy-duty, you may want to spend a bit more.

## Frequently Bought Together

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-20*