A Spektrum controller/transmitter equipped with industry-leading DSMX 2.4GHz technology. This transmitter model sells on the Horizon Hobby website for $59.99 and is included in RTF versions of the following products: Blade 120 S, 120 S2 Blade Nano S2, Nano S3 E-Flite UMX Night Vapor Hobby-Zone Sport Cub S 2 Works with almost all of the UMX series units Works with most DSMX 2.4GHz receivers. No returns on these so check compatibility before ordering. This is actually removed from a new 120 S2 RTF and has only been used to test operation. Requires 4 AA batteries (not included). Ships to continental USA only.