Uses high precision DS3231 real time clock chip and is accurate to within 6 seconds a year. Uses a CR1220 battery to maintain time while not powered.
Comes with 5v power supply. This item is in the category "Home & Garden\Home Décor\Clocks\Alarm Clocks & Clock Radios". The seller is "mbelge" and is located in this country: US. This item can be shipped to United States.