This is the Futaba R603FF 2.4GHz FASST 3-Channel Receiver. used in the 2.4GHz 3PM Pistol Grip Radio. FEATURES: Incredibly small and lightweight Futaba Advanced Spread Spectrum Technology (FASST) allows receiver to process information at eight times the resolution of standard systems for unsurpassed control and smooth servo travel One year limited waranty INCLUDES: Futaba R603FF 2.4GHz FASST 3-Channel Receiver REQUIRES: Futaba 3PM Computer Radio with the 2.4GHz FASST System (FUTK2020) SPECS: Reception Antenna: External Power Requirement: 6V NiCd battery Size: 1.5 x 1 x .55" (39 x 26 x 14mm) Weight .45oz (12.8g) jxs 3/22/07 updated4/10/07kh ir/jxs