Designed for the blind, with no visual readout, this unit has 4 easily accessible and programmable buttons which, when used in combination, tell the user how to set the time and use the timer and stopwatch. It can be used as an alarm clock, a count-down timer with or without automatic reporting, an auto-repeating timer and a stopwatch. There are 11 different tones to choose from. A protective cover is provided to prevent accidental resetting of functions. Measures 5.5 inches x 3 x 1.25 and uses one 9 volt battery, not included.