RL-HM205 Digital desktop timers is a compact device which have 4 settable channels of countdown trackings ,4 count-up tracking as a stopwatch and adjustable clock time by 12 or 24-hour system for different useage. The 4 timers can track different events at the same time, its will be reminded arrival status by different volume. You can pause or restart every timer trackings at any time during 4 individual channels; The timer values can be cleared upon pause status. The volume can be set as 3 modes: high,low and silence by decrease or increase button. It have 4 groups of individual timers to perform countdown or count-up tracking of different events. For office usage For conference usage For study usage For kitchen usage You can view different icons variation when 4 timers running at the same time.