Analog alarm clocks are powered both by batteries or electricity. Most have one particular alarm setting and several, although not all, have a snooze button. They don’t give any of the most up-to-date technology or frills, Nonetheless they get the job accomplished. Their small size makes them ideal for travel. https://tedomarket.com/product/clock/alarm-clocks/alarm-clock-digital-projecting-large-display-time-date-temperature-projector-digital-colorful-backlight-table-clock-for-home/