Spektrum DSM2 AirMod Remote Transmitter Integrated case design. One-piece module-antenna unit allows for a cleaner installation- no wires on the outside of the transmitter and no need to install an antenna. Includes a full-range AR7010 7 channel receiver- great for most heli and airplane applications Bind button on the module makes binding easy DSM2 Spread Spektrum technology allows JR module based transmitters to use Spektrum 2.4GHz No need to buy an expensive new transmitter- save money by keeping your favorite radio with familiar software program.