OrganicDiscount
Happymodel CrazybeeX 4in1 AIO Flight Controller Built-in ESC/VTX/Frsky SPI RX/OSD for 1-2s Whoops

HAPPYMODEL

Happymodel CrazybeeX 4in1 AIO Flight Controller Built-in ESC/VTX/Frsky SPI RX/OSD for 1-2s Whoops

Reviewed byUpdated 28 Jul 2026

Best price available

£49.99

From £49.99 across 1 merchant
Check price — £49.99 at Makerfire

Key features

  • Are you ready to upgrade your 65mm/75mm/85mm whoops?YES!!
  • The Happymodel CrazybeeX built-in ESC/VTX/Frsky SPI RX/OSD will handle 1-2S battery!!

Product Overview

Are you ready to upgrade your 65mm/75mm/85mm whoops?YES!! The Happymodel CrazybeeX built-in ESC/VTX/Frsky SPI RX/OSD will handle 1-2S battery!!

Good to Know

This product is discontinued. Important: Not compatible with big propeller like 65mm/75mm when use 2s battery . Recommend max size of propeller is 55mm.

Flight ControllerMCU:STM32F411CEU6 (100MHZ, 512K FLASH)Sensor: MPU-6000(SPI connection)Board size: 28.5 * 28.5MMPower supply: 1S-2S battery input (DC 2.9V-8.7V)Built-in 5A(each) Blheli_S 4in1 ESC Dshot600 readyBuilt-in Betaflight OSD(SPI Control)Built-in 5.8G VTXBuilt-in SPI Frsky receiver support D8/D16Built-in 5V 1A BECBuilt-in voltage detectionFirmware target: CRAZYBEEF4FROnboard 4in1 ESCMCU upgraded to EFM8BB21Power supply: 1-2S LiPo/LiPo HV Current: 5A continuous peak 6A (3 seconds)Support BLHeliSuite programmableFactory firmware: S_H_90_REV16_7.HEXDefault protocol: DSHOT600Onboard Frsky SPI receiverSPI BUS receiver Frsky D8/D16 compatibleSupport Frsky_X_LBT(EU-LBT), Futaba S-FHSS (Need Betaflight 4.0.5 firmware or latest)Channels: 8ch/16chFailsafe supportNo ground interference ( Transmitter and receiver 1 m from the ground): 100m~200mOnboard 5.8g VTXOutput power: 25mw Frequency: 40CHInput voltage: 3.3V 5.5VCurrent consumption: 300mA(type)Frequency: 5.8GHz 5bands 40 channelsWith Race band Smartaudio readyDefault vtx_power should set to be “2”Onboard Voltage and Current detectorVoltage Meter scale “110”Amperage Mete scale “1175”

What's in the Box

1x Happymodel CrazybeeX 4in1 AIO Flight Controller

Pros & Cons

Pros

  • Are you ready to upgrade your 65mm/75mm/85mm whoops?YES!!
  • The Happymodel CrazybeeX built-in ESC/VTX/Frsky SPI RX/OSD will handle 1-2S battery!!

Cons

  • Currently sold by only one merchant — limited price competition
  • No customer reviews yet
  • Price history not yet established

Price Analysis

Fair Price

The current price is around the average. It's a reasonable time to buy.

Current Best

£49.99

Average Price

£49.99

Lowest Ever

—

Highest Ever

—

Compare Prices (1 merchant)

Compare prices for Happymodel CrazybeeX 4in1 AIO Flight Controller Built-in ESC/VTX/Frsky SPI RX/OSD for 1-2s Whoops

Ma

Makerfire

Best Price
Out of Stock

Price

£49.99

Shipping

—

Total

£49.99
Go to Store

Price Alert

Get notified when the price drops. No account required.

Get a price drop alert
£

Current best price: £49.99

Product Details

BrandHAPPYMODEL
MerchantMakerfire
MPN6535467

You might also like

Browse all products →
iScooter X02Pro Mobility Scooter - X02 Mobility Scooter39% OFF

Iscooterglobal.co.uk

iScooter X02Pro Mobility Scooter - X02 Mobility Scooter

£468.99£769.99Save £301.00

Best price at iscooter

Compare 2 prices
Compare Prices
Greg Mendez

The Sinclair Music Hall

Greg Mendez

£39.11

Best price at TicketNetwork Affiliate Program

Compare Prices
Paul Ogata

Brad Garrett's Comedy Club At The MGM Grand

Paul Ogata

£124.27

Best price at TicketNetwork Affiliate Program

Compare Prices
iScooter DX5Pro / DX5 2000W Electric Scooter with Seat & Large Basket - Moped Style - DX5 1500W37% OFF

Iscooter uk

iScooter DX5Pro / DX5 2000W Electric Scooter with Seat & Large Basket - Moped Style - DX5 1500W

£379.99£599.99Save £220.00

Best price at ihoverboard

Compare 2 prices
Compare Prices
TEMU Dr. Sebi Cure For All Diseases: The Definitive Guide On How To Treat Naturally The Most Common Diseases And Detox The Liver In 9 Steps

Temu

TEMU Dr. Sebi Cure For All Diseases: The Definitive Guide On How To Treat Naturally The Most Common Diseases And Detox The Liver In 9 Steps

£14.39

Best price at Temu Affiliate Program

Compare Prices
Bloom Bae Neon Green TX Floral T-Shirt - Gravel / 4XL

Printify

Bloom Bae Neon Green TX Floral T-Shirt - Gravel / 4XL

£35.00

Best price at Blade Infiniti

Compare Prices
American Vanity

Mickey's black box

American Vanity

£38.24

Best price at TicketNetwork Affiliate Program

Compare Prices
Gordi

Kilby Court

Gordi

£43.45

Best price at TicketNetwork Affiliate Program

Compare Prices

Frequently Asked Questions

What is the best price for Happymodel CrazybeeX 4in1 AIO Flight Controller Built-in ESC/VTX/Frsky SPI RX/OSD for 1-2s Whoops?+
The best price for Happymodel CrazybeeX 4in1 AIO Flight Controller Built-in ESC/VTX/Frsky SPI RX/OSD for 1-2s Whoops is currently £49.99 from Makerfire. We compare prices across 1 merchant to find you the lowest price.
How do I get notified when Happymodel CrazybeeX 4in1 AIO Flight Controller Built-in ESC/VTX/Frsky SPI RX/OSD for 1-2s Whoops drops in price?+
You can set a free price alert on this page — just enter your email and your target price. We'll email you as soon as the price drops to that level. No account needed.
Is HAPPYMODEL a good brand?+
We compare HAPPYMODEL products across multiple UK merchants to help you find the best deals. Check our HAPPYMODEL brand page for more products and price comparisons.

How we make money

OrganicDiscount is free to use. When you click a link to a merchant and make a purchase, we may earn a small affiliate commission at no extra cost to you. This helps us keep the site running and continue comparing prices across UK retailers. Our rankings and recommendations are never influenced by commission — we always show the lowest price first.