Digital Timer, Features (4) Adjustable Volume Levels, Overall Depth 1 in, Overall Diameter Not Applicable, Overall Height 7 3/4 in, Overall Width 5 1/4 in, Digital Display Screen Type LCD, Alarm Type Audible, Display Type Digital, Maximum Time Setting 24 hrs, 59 minutes, 59 seconds, Minimum Time Setting 1 sec, Count Direction Count Down, Count Up, Number of Channels 1, Clock Function Included Yes, Includes Batteries, Batteries Included Yes, Battery Size AAA, Number of Batteries Required 2