The brightness of the time display is adjustable: 6 levels can be manually adjusted. The adjustment level is: 100% - 80% - 60% - 40% - 20% - off, and it can also be adjusted automatically by light sensor. Activate this function and the product will automatically adjust the display brightness according to the ambient brightness. Free switching between 12/24 hour systems Dual alarm and volume control function: Two independent alarm functions, you can set alarms for weekdays and weekends and sleep for 5 to 90 minutes. The 5-level volume control can meet your different needs LED display: The digital alarm clock is equipped with a 6-inch S-shaped LED mirror display, which is convenient to see and easy to use. The unique design makes this digital alarm clock not only one of the best bedroom decorations, but also a good partner that wakes you up every morning for a good day USB Powered: This bedside alarm clock is equipped with a USB charging cable and also has a USB output for charging other electronic devices. The built-in battery ensures power-off memory. (Note: The product needs to be connected to an external 5V 1A power supply (only one USB cable is included in the standard delivery, no adapter) Cartoon RGB Colorful Atmosphere Light: 4 dynamic gradients + 7 monochrome displays. The brightness of the night light can be adjusted to an independent and stepless dimming function. Size: 18*5.5*8 cm (7.1 2.17 3.15 inches), fashionable and unique design, a good item to decorate bedroom and home, wake up and light up your wonderful life every day. One of the best Christmas gift options for digital alarm clocks