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Happymodel Crux3 115mm 4in1 AIO CrazybeeX KV6400 1-2S 3inch Toothpick FPV RC Drone w/ LiteRadio 2.4G 8CH Radio Remote Controller


Regular price $117.59

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Happymodel Crux3 115mm 41gram CrazybeeX AIO 4in1 Flight Controller EX1202.5 KV6400 For Insta 360 1-2s Brushless Toothpick Drone RC FPV Drone

Note:pre-sale item,will be available on October 20,first order first send,before you place the order,pls kindly know,thanks.


41gram 1-2s brushless Toothpick drone

New AIO 4in1 CrazybeeX flight controller


New 1202.5 brushless motor

XT30 connector

Recommend to use 2s 350mah/400mah/450mah/520mah battery

Compatible with Insta360 Go Camera



Brand Name: Happymodel
Item Name: Crux3

Wheelbase: 115mm
Size: 97mmx97mmx35mm(without propellers)
Weight: 41g(without battery)


Receiver option:

Internal SPI Frsky version (Compatible with ACCST D8/D16, Recommend D8 mode)

Internal SPI Flysky version(Compatible with AFHDS and AFHDS-2A Flysky transmitter)

Internal SPI DSM2/DSMX version(Compatible with Spektrum or Multiprotocol DSM2/X radio)

External Frsky RXSR receiver version(ACCST D16 sbus output)

External TBS Crossfire Nano receiver version





After the latest round of beta test, LiteRadio is back to the market with the huge improvements based on the original version.

-Supports Frsky protocol, easily change Frsky D8, Frsky D16 FCC and Frsky D16 LBT mode (The default version is Frsky D16 FCC)

-Built-in charging module, support USB charging 

-Adopted the rubber coat and add weight, makes it more ergonomic

-Add vibration motor, provide a vibrating prompt

-Redesign the power button, make it crystal clear and better for the LED indication



Item: LiteRadio

Frequency Range: 2.4G (2403MHz-2447MHz)

2.4G System: NRF24L01 or CC2500

Channel: 8

System: Frsky Protocol 

Power: 80mw

Model Type: Multi-rotor

Support USB Charging

Support FPV Simulator Connected

Output: PPM, support Student Radio Mode

LED Light: Green-Power On / Red-Warning / Blue-Normal

Battery: 350mAh 2S Battery

Weight: 227.4g (with battery)

How to change the protocol (D16/D8 Version):

To change FrSky protocols (FCC D16, EU D16, or D8), you first have to power it off, then press and hold the bind button while you power it back on. Then it will flash the code to indicate which protocol it is on. 

LED Status - Protocol Version:     

Flash Once - Frsky D16 FCC; 

Flash Twice - Frsky D16 LBT; 

Flash Three Times - Frsky D8

LiteRadio Guide

Manual for LiteRadio Radio Transmitter

LiteRadio Configuration - OpenTX Companion

Setup E.G. #1 - Trim the Gimbal Central Value