You'll know in an instant with this innovative World Time Alarm Clock that lets you see the time in 16 pre-set time zones with just the turn of a knob. Features include 12 or 24-hour format, calendar, digital thermometer, 72 dB alarm, and even a bright, built-in LED flashlight. Includes two AAA batteries. (5 x 1 1/2 x 1 3/4"; 2 oz)