9 in Round Wall Clock for Indoor Use Quartz Movement for Accurate Time Keeping Glass Lens over a White Face & Black Metal Hands Uses 1 AA Battery (Not Included) Silent Movement for Peace & Quiet Keep track of time without disturbing co-workers by using this Metro resin analog wall clock. The silent hand movements ensure quiet operation to keep noise to a minimum, while the broad face and large numerals make this clock easy to read from afar. This Infinity Instruments Metro clock has an elegant design and sleek black case for easy matching.