Kyosho PERFEX RA-16 RX-ESC is a one-piece receiver and speed control amplifier designed for the Half 8 Series, providing superior drive response and torque compared to standard amplifiers. It features minimum drive, drag brake, and an easy one-touch setup button. The mode setting allows for the selection of minimum drive or drag brake. With a built-in protection system, the RA-16 shuts down in case of overheating, ensuring the longevity of your components. The RA-16 is compatible with Kyosho's KS-12S servo and requires the use of a KT-3 transmitter.