The alarm clock has a buzzer sound and is turned on/off with a switch on the top. ▪️Condition Works have been confirmed. The buzzer sounds. There are scratches, scuffs, and discoloration due to aging. Currently, it does not gain or lose more than ±1 minute per day. The switch on the bottom allows you to switch between 50Hz and 60Hz. * If vibration is applied during time adjustment or operation, the number panel on the dial may come off the upper retaining tabs and become slanted. If you continue to operate it, the gears will mesh in order of seconds → minutes (ones place) → minutes (tens place) → hours, and it will return to its normal flat state, so please be aware of this. It has been a considerable number of years since it was purchased. It is a used item and has been stored at home, so please refrain from purchasing if you are sensitive to such things.