Time, date, temperature automatically take turns display (DP1) / only time (DP2);
Alarm clock function, every time can set up three groups of alarm; Each alarm 1 minute Sound are: "bi bi bi ...";
Built-in battery keeping Time display program running inside but invisible outside;
It can be plugged in via USB (DC 5V / 500mA power supply by USB) or powered by 3 / 4 AAA batteries (batteries not included); We recommend to use USB cable to support the power. The clock worked with battery can only last about 3-5 days. This kind of clock is designed to be used with USB cable (please connect permanently). The batteries are for a back up use in case that you have a power cut in your home;
Add a touch of modern to your bedroom, living room or office.
Tailcas® Mini Digital Square Woodlike Desktop Clock / Alarm Clock with LED Display Electronic Alarm Clock with Power Saving Mode Perfect for Bedroom / Living Room / Office - (Black Wood + Green LED) - 60R2TWSQJ