1. Count-up (max.: from 00:00 to 99:99) and count-down (max.: 99:99 to 00:00) 2. Time clock: 12h/24h 3. Sound of key-press, count-down alarm and alarm clock 4. Sandglass icon and time display 5. LED backlight: green 6. Chime on every hour or time alarm 7. Preset time: 10 minutes, 1 minute and 10 seconds 8: Clear button: clear the memory 9: Start or pause button.