Futaba 8JA 8-Channel 2.4GHz S-FHSS Air Radio Transmitter Mode 2 with R2008SB Receiver Futaba S-FHSS 2.4GHz security (also compatible with FHSS) Airplane and Helicopter modes Wireless transfer of model data to and from other 8J transmitters 20 model memory with 10-character model and user naming Includes 8J Transmitter, R2008SB 8-channel Receiver, Neckstrap, and Instruction Manual