The CDN egg timer counts either up or down in both seconds and minutes to a maximum of 100 minutes. It"s easy to use; just twist the base to set the time, then press the stop/start button on the top to begin counting. You can interrupt the counting with a touch of the stop/start button, then resume with another touch. When the easy-to-read digital display reaches zero, it sounds the alarm, then begins counting up. To shut off the alarm, simply touch the start/stop button and the last time counted will be displayed. The CDN digital egg timer stands 4-inchs tall and is available in pearl red, or pearl white. AAA battery and instructions are included.