Futaba R2004GF 4-Channel 2.4Ghz FHSS Receiver (Rx). For use with the Futaba 3PL and 4YF 2.4GHz FHSS transmitters. Flexible coaxial antenna makes it easy to position inside a model for ideal reception. Prevents interference and promotes dependability with frequency-hopping, spread-spectrum technology. The Futaba R2004GF 4-Channel 2.4GHz FHSS Receiver (Rx) is for use with the 3PL and 4YF 2.4GHz FHSS transmitters. A flexible coaxial antenna makes it easy to position the receiver inside a model for ideal reception. Power Requirement: 4.8V or 7.4V shared with servos. Current Drain: 30mA at no signal. Size: 1.54 x 1.02 x 0.39 in (39 x 26 x 10 mm). Weight: 0.28 oz (8 g). Antenna Length: 8 in (203 mm). This receiver does not work with the Futaba FASST system. 3.25 x 2.5 x 1.38 inches. 15 years and up. We reserve the right to cancel any order for any reason at any time. We are not responsible for undeliverable addresses. Your feedback very important to us, after you get your package and you are. Satisfied with our service. If you have any problem with your order / any questions please before leave any type of feedback. Thank you for shopping at our store.