The flight controller is the stock original FC for Beta65 Pro Quad. As show below.  It accepts upto a 2s battery.

BULLET POINTS:

• Support programmable LED Sprit (turn off transponder before using)
• Built-in voltage detection, alarm
• Built-in Betaflight-OSD
• Buzzer solder pin
• LED_STRIP connector

SPECIFICATION:

• Size: 20*20mm
• Mounting hole: 16*16mm
• Diameter: 2mm
• Weight: 1.9g
• Processor: STM32F303CCT6 (72MHZ, 256K FLASH)
• Sensor: MPU-6000 (connected by SPI)
• Firmware version: betaflight_3.1.0_OMNIBUS
• Built-in ESC: 5V/0.5A
• Receiver: PPM, Spektrum 1024/2048, SBUS, IBUS, XBUS, SumD SumH RX etc.
• Receiver not included.
• Power supply: 2S lipo battery ( 6.5V-8.4V)

PACKAGE:

• 1 * Omnibus F3 Flight Controller (16x16mm)

Due to continuous upgrades and revisions, the images may vary slightly from the actual product received.