... Power Supply: DC 6V/500MA power supply, external power, built-in button batteries, when power normal travel time.Specifications:The digital clock ... , the brightness can be dimmableDisplay year, month, date, temperature,Product Type: CLC6-R/G/W/BSize: 16 * 8 * 6CMProduct weight: ... the indication lights up when it is afternoon.5, built-in CR2032 button battery (under normal circumstances, it can work 4 to ...