A silent alarm clock

Normal alarm clocks wake us up through sound, which has to affect other people, some of whom may not like the noise of the alarm clock. So we think of other quieter ways to wake us up. This watch alarm clock is just right. You can put it under the pillow or wear it on your wrist like a watch. When the set time comes, it will vibrate until you turn it off after waking up. In this way, other people won't be disturbed. This is also a great reminder in some special places. Of course, you can also set it as a beeping alarm clock like a normal one. This watch alarm clock has an LED backlit display screen. Even if it's not used as an alarm clock, it's still a nice watch. The price is also quite reasonable, with a retail price of 25 US dollars abroad.