The Bulova C4842 round shaped Versatile Stereo wall clock is made from plastic and is moisture and weather resistant for indoor or outdoor use. It has a white dial with black hands and Arabic numerals which lights up at night. This clock has a protective glass lens and also houses a Bluetooth wireless speaker system. It wirelessly supports any type of programming from a smartphone or tablet and transmits up to 30 feet away, working easily with Android and iOS software. Built-in Li-Polymer rechargeable battery can be removed and charged via the included USB cable and universal wall charger. Height: 8 inches / 20.3cm Width: 8 inches / 20.3cm Depth: 3 inches / 7.6cm