This is a set of transmitter, receiver, and servos for radio-controlled models. ・Receiver It was stored for a long time after falling into a pond. The lamp lights up when powered on, but operation has not been confirmed. The circuit board appears to be coated with transparent resin. ・Transmitter Operation has not been confirmed. ・Servo Operation has not been confirmed due to long-term storage. All items are listed as [junk]. Please use them for repairs, parts, research, etc. Please purchase only if you understand this.