A round LED alarm clock with a black or silver effect mirror dial design and contrasting white, blue or red LED. This alarm clock provides a contemporary, space-age style to the desk or bedside with its clean colours and rounded case. Designer LED clock with bright display 12 or 24 hour format Night Screen brightness setting Temperature display -9 to 39°C USB power cable included The time will display continuously only when connected to a power source with the included USB cable or a DC adaptor (not included). 3 x AAA batteries (not included) are required to retain time and alarm settings. Size: HWD 10 x 10 x 4.7cm / 3.9 x 3.9 x 1.8in Materials: Acrylic alarm clock, LED dial Colour: Black Case with White LED Movement: Digital Power: 1 x USB cable included 3 x high quality branded AAA batteries (not included) DC input 5V/500mA - 1000mA (not included)