Multi-function mode: : timer, alarm clock. On/off button saves energy. Optional buzzer alarm and silent and flashing alarm conversion. This is a great choice for any area where you want to be quiet or need a loud alarm. Handy timer: count down and count up. Memory function, if you do not turn off the timer, the timer will remember your last setting. If you don't like the beeping, you can switch the beeper to silent and the beeper will blink. RELIABLE ALARM CLOCK: It also makes a great alarm clock. You can set an alarm to wake you up when you sleep. Study or work regularly, record time better and improve time management skills. Perfect Design: Large LCD screen, large font, 2 strong magnets on the back. There's also a hidden stand that allows it to stand upright on a table at an angle. Powered by AAA x 2 batteries (not included). Changing the battery is easy, just slide openthe cover on the back. Size: 9.2*7.8*2.1cm