Tactic TR624 6-Channel SLT 2.4Ghz Receiver (Rx) Receives signals for up to six servos Weighs only 0.28 oz (8 g) Secure Link Technology (SLT) makes an unbreakable bond between your receiver and transmitter, letting you fly with confidence Pushing a single button binds the TR624 to the transmitter's unique, coded signal 1-year limited warranty