The Flywoo GOKU V3 HD Stack is perfect for FPV enthusiasts. It comes in a compact 16x16mm size. The stack includes an F4 flight controller and a 20A 2-4S 4-in-1 BLHeli_S ESC. It has a built-in LED for better visibility during flight. The ESC supports various signal types, has a 27×35mm board size with 16mm mounting holes, a continuous current of 20A, and weighs 4.5g. The flight controller has an input voltage range of 7.4V - 24V / 2 - 6S LiPo, a size of 25mm x 23mm x 8mm, and weighs 3g.