Axion 4 4CH 2.4GHz RX HRC27824 

FEATURES: Compatible only with the Hitec Lynx 4S transmitter
Ideal for monster trucks, crawlers, boats and more
Works with analog or digital servos
High response selectable (7/14ms)
Fail safe/hold function
Two extra slots for receiver power and transponder

INCLUDES: 2.4GHz Hitec Axion 4 Four Channel Receiver