Stokes publishing mychron II timer is easy to use 4-key operation: minute, second, start/stop and reset. Counts up or down to time your activity. In count up mode, timer continues to time activity, after alarm sounds, until the start/stop key is pressed. In count down mode, timer stops when set time expires. On/reset key quickly resets timer to previous set time. Automatic shut off when not in use. Handy size with easy to read display in minutes/ seconds (.01 second readability). Available in blue color. One year warranty.