Orion 7827 EQ-2M Electronic Telescope Drive Precision mini-motor attaches to your Orion EQ-2 equatorial mount for motorized tracking of celestial objects Electronic drive provides regulated sidereal-rate tracking in right ascension so you can automatically follow objects in the sky as they appear to migrate around Polaris Drive hand controller has 2x and 4x speeds and pause mode Includes motor, controller and battery case