FR FC Firmware target: CrazybeeF4FR
MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: MPU-6000(SPI connection)
Original whoop size compatible
Power supply: 1S battery input (DC 2.9V-4.35V)
Built-in 5A(each) Blheli_S 4in1 ESC Dshot600 ready
Built-in Betaflight OSD(SPI Control)
Built-in 5.8G VTX
Built-in SPI Frsky receiver
Built-in 5V 1A BEC

Onboard 4in1 ESC
MCU upgraded to EFM8BB21
Power supply: 1S LiPo/LiPo HVCurrent: 5A continuous peak 6A (3 seconds)
Support BLHeliSuite programmable
Factory firmware: O_H_5_REV16_8.HEX
Default protocol: DSHOT600

Onboard Frsky SPI D8 receiver Version
SPI BUS receiver Frsky D8 compatible
Compatible Non EU transmitter D8 modelChannels: 8ch
Failsafe support
No ground interference ( Transmitter and receiver 1 m from the ground): 200m~300m

Onboard 5.8g VTX
Firmware version: OPENVTX
Smartaudio v2.1
PIT Mode support
RCE Mode support
Channels:48ch
Transmitting Power: 0/RCE/25mw/100mw/400mw
Power supply: DC 5V
Current (5v): <650ma (400mw)