Extra features: alarm clock and timer Notice： The digit model requires simple assembly. Common Questions: Q: How does this clock read the time? A: If the number shows 18.30.23, it means 18:30:23. (Also supports 12-hour clock) Q: Is this clock charged or plugged in? A: This clock is powered by a USB interface, with a USB power supply and a TYPE-C charging cable. Q: Does the time need to be reset after the power is off? A: There is a button battery on the motherboard, and it will continue to run when the power is off. You don't need to reset the time when you plug it in after the power is off. Q: Is it convenient to adjust the time with this clock? Do I need to use a computer to set it? A: The clock is equipped with a special time setting button, which can set the time very conveniently, without the complicated setting of the computer. The built-in clock chip is very accurate, and there is no need to adjust the time frequently, simple and worry-free!