If you have any doubts about this tool, please contact us, and we will have a professional after-sales team to answer your questions within 24 hours. This wood-type desktop beautiful alarm clock, specially crafted and polished, has a and no barbs to avoid hurting your hands. It can switch between 12 hours or 24 hours. Not only beautiful appearance, but also very convenient to use. This is always powered by 3 AAA batteries or USB power cable, which is very convenient to use. (The built-in power supply does not display when the power is off but can still be timed normally, eliminating the trouble of resetting the time after each power failure). You can choose between two modes - the sound control mode and the always bright mode. Voice control mode is recommended when running on battery power. You can choose to use the voice mode or the constant light mode (the battery control is recommended to select the voice mode). This product has multiple functions, such as display time and temperature, powerful; thermometer C / F display; alarm function, three alarms. The soft LED lights will be displayed on a wooden , so you can see the time clearly even at night.