SPMR52001 is the part number for a Spektrum 3-position, long round stick switch used as a replacement part for various Spektrum and compatible radio transmitters, including models like the DX6i, DX6, DX7, DX8, DX9, NX6, NX8, and NX10. Product: It is a replacement switch for a transmitter. Description: It is a 3-position switch with a long, round stick for the switch handle. Compatibility: It is compatible with a wide range of Spektrum transmitters, such as the DX6i, DX6, DX7, DX7s, DX8, DX9, NX6, NX8, and NX10, as well as some other brands like FrSky Taranis.