This LED projection clock supports display the current time and temperature and report via voice. It can also project the accurate time to your ceiling, wall, etc. You could put it everywhere such as studying room, bed room, desks. When you are not around, he or she could sleep with assurance now. Color: black, Material: plastic, Battery: 3 x AAA batteries (not included), Item size: approx. 9.5 x 8 x 8 cm / 3.7 x 3.1 x 3.1 inches, Item weight: 185 g / 6.52 oz.