About Vixen DD-2
DD-1 -Dual-Axis Controller, controls right ascension and declination motors for GP, GP-DX, GP-E, SP and SP-DX equatorial mounts. Features 1.5x and 2x guiding, 32x fast forward and reverse slewing, and pause. Runs on eight D batteries (not included). Includes cables and battery case.
Requires 2 MT-1 RA/Dec Motors