Being able to serve as either a count-up or count-down timer, ST-306 can be used as a timing display system for various sports events including swimming, track races, marathon, walking race, skiing, cycling, and soccer, rugby and basketball and other games. It can also display game points and deuce points in tennis. It can measure lap time, split time and finish time. Either lap or split times of up to 25 runners can be stored in memory for later recall. It has an auto repeat function. That counts up/down a preset time repeatedly at given intervals and sounds a buzzer each time the preset time has been counted up/down. Being battery-powered, it can be used both indoors and outdoors. Optional stand Available.