This is a transmitter and receiver set from Kyosho, including the KT-201 transmitter and the KR-200 receiver. I have confirmed that it works. I connected a servo and ESC and tested the throttle (forward and reverse) and steering (left and right). The power connection on the transmitter sometimes has poor contact. Please consider this as junk. Please purchase only if you understand this. Syncro KT-201 remote control, a high-response digital transmitter. - Brand: Syncro - Model: KT-201 - Type: Digital Proportional Remote Controller - Frequency: 2.4GHz - Features: High Response Thank you for looking.