Multi-Task Timer & Clock, 100 hours by min, 1-3/8″W x 1/2″H (3.5 x 1.3cm) display, dual function, memory, counts up/down, clock, stopwatch, loud & long alarm, stop & restart, lock, sliding mode switch, international time, requires (1) 1.5V LR44 battery (included), pocket clip/magnet/stand, food-safe ABS