3806C LED Electronic Home Living Room Desktop Clock Perpetual Calendar Digital Tabletop Clock 1. Clock function: display of hours and minutes with 1224 hour conversion 2. Date function: display month, day and year (2000 to 2099) 3. Alarm function: alarm switch can be selected by toggling the alarm switch, daily alarm snooze function can be set, snooze time 5 minutes 4. Temperature function: temperature measurement, Fahrenheit and Celsius display with switchable 5. Power saving function: press MINDATE to open the power saving function, brightness adjustment three brightness adjustment (bright, dark, off) 6. High-efficiency battery, long life without power, durable, long life 7. No blinding soft light screen, one key to open the backlight, can be used as a small night light 8. Power supply: 3 x 7 batteries (not included) USB direct plug 9. Size: approx. 13.5 x 7.4 x 4.6cm