Corded Electric and Energy SavingCorded Electric is the best choice and the stablest power for this wall clock. As we have known, LED is very energy saving and long usage time, so our clock also has this advantage. 10 feet USB cable can plug in the laptop, PC, power bank. (we dont recommend using the power bank. ) A CR2032 coin cell can be installed to ensure that the clock remains accurate when disconnected from the power supply, but the coin cell does not power the clock. There is no battery cover, it is designed.
Huge and Visible Countdown Clock Supports 364 days 23 hours 59 minutes 59 seconds ultra-long countdown time. Also can set for the minute or seconds countdown. Nobody will miss the countdown because of the 6-inch huge red numbers. We updated the user manual and took a video tutorial for countdown function, if you dont know how to set it, just contact us to get the video tutorial and new version user manual.
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are been Promoted4 memory chips were added to the clock; Upgraded the wall clock CPU chip, provide the more precise timing; Upgrade the LED display refresh rate, more stable display and good for your eyes; Upgrade the remote control distance for 49 ft; (without any obstacle. ) We do our best to provide a more useful and accurate digital clock.