The Orion Dual-Axis TrueTrack Drive System offers dual-axis control which is ideal for high-power viewing and astrophotography. Hand controller allows sidereal tracking in right ascension and electronic control of declination. Features 2x, 4x and 8x speeds, plus pause mode. Thumbwheel clutches on both motors allow use of manual slow-motion controls if desired. Includes two motors, hand controller and battery pack. This precision DC drives provides accurate, regulated tracking for SkyView Pro mounted telescopes.