Motor Drive for Celestron AstroMaster or PowerSeeker EQ series telescopes. Allow for automatic tracking of objects on your AstroMaster EQ Mount. No more turning knobs, let the motor drive track objects for you! Without a motor drive the AstroMaster telescope tracks objects in the sky manually. For example, if you had Saturn or Jupiter in your eyepiece, the object would only stay in your field-of-view at high magnifications for a few seconds. To track objects manually, you need to turn the knobs on the EQ mount to keep the object in your view. Each time you turn the knob, the image shake makes viewing the object impossible, making you wait for the telescope to stabilize again. A motor drive eliminates the need for manually tracking objects. Once your object is located, simply turn on the motor drive and adjust the speed to match the objects tracking speed. The motor drive runs for up to 40 hours on one included 9 volt battery. Motor Drive allows for tracking objects in the sky No more turning knobs to follow objects Eliminates the image shake from manual movements Installs quickly and easily