JUMBO digit clock/timer features a dual 3-3/4′ x 5-1/2′ x 1-9/32′ LCD display that tilts for easy viewing. Two channels can be operated and displayed simultaneously-use both channels to count down, or use one channel to count up and the other to count down. Built-in clock displays time of day in 12- or 24-hour formats. Timer recalls previous time set. A 70 db alarm sounds at the end of the countdown; shuts off at the touch of a button. Timer displays time elapsed since the end of a countdown. Place timer on tabletop, or mount on wall using the double-sided taped bracket or screws (both are included). what’s included: wall-mounting bracket and one AAA battery.