Description About this item Digital Temperature Clock: The LED display is the same as the mirror screen, with a clear and bright appearance, showing time and temperature, time display supports 12-hour and 24-hour format, temperature display supports switching between Fahrenheit and Celsius, easy to read USB power supply and backup battery Built-in: We included a rechargeable USB cable in the smart clock to make your power supply easier; the built-in rechargeable battery can save your clock settings when the power is off 4 levels of brightness: 4 levels of brightness can be adjusted, from soft light to bright, press the snooze/light button to switch, very suitable for bedrooms and bedside. When plugged in with a USB cable, the LED light will always be on. 3 volume levels and 13 music: This is a non-ticking alarm clock and you can set the volume of 13 alarm sounds by pressing + or - when the sound volume is set or alarming, easy to adjust. Best gift for family, friends and children. Voice control: The rechargeable bedroom clock can be operated with voice control. When the LED alarm clock is working without a power cord, the screen will automatically turn off after 8 seconds. When the surrounding environment reaches 90 DB or press the desktop, the clock will automatically turn on. Save energy and sleep better at night.