All-in-one FC with integrated 40A ESC, Bluetooth, and Bluejay firmware for smooth flight.SpeedyBee F405 AIO 40A Bluejay 25.5x25.5 3-6S Flight Controller£55.00PriceOut of StockSpecificationSTM32F405, ICM-42688P, 3–6S LiPo, 25.5×25.5mm, 13.6g, 8MB flash