This is the Futaba R603FF 2.4GHz FASST 3-Channel Receiver for the 3PM Pistol Grip Radio. Incredibly small and lightweight and features Futaba Advanced Spread Spectrum Technology (FASST) which allows the receiver to process information at eight times the resolution of standard systems for unsurpassed control and smooth servo travel.
This receiver also works with the 3PK and 4PK radio systems.
Reception Antenna: Single External
Power Requirement: 6V NiCd or NiMH battery, Li-Poly with regulator
Size: 1.5 x 1 x .55" (39 x 26 x 14mm)
Weight: .45oz (12.8g)