Welcome the Pyro Drone Pyro32F3 4IN1 ESC! Pyro drone brings some of the best quality products to the drone racing market and this is another great option of 4in1 ESC's to add to your fleet. With a built in F3 MCU this ESC runs 2x the speed of the normal 4in1 esc we see out there. The latest and greatest in ESC tech running BLHeli32 firmware. 3-6s LiPo so you can push a lot of through the ESC without worrying about it not being able to handle the power. Get yours today!