7 IN LARGE DISPLAY + MIRROR SURFACE Digital clock is equipped with a 7 inch large size LED display,you can clearly check the time anywhere in the room; Alarm clocks with unique acrylic mirror technology, fashionable and beautiful, can also be used as a dressing mirror.3-LEVEL BRIGHTNESS + AUTO ADJUSTMENT Electronic clock LED display screen has three kinds of brightness: low,medium and high light,you are free to choose the brightness; LED clock is equipped with a photosensitive sensor that automatically adjusts its brightness based on the intensity of light around the screen.DUAL USB CHARGING PORTS + POWER-OFF MEMORY Mirror clock uses DC-5V/1A USB power supply, with 2 USB ports,which can charge your mobile phone,tablet; Modern clock is equipped with CR2016 battery, when the alarm is disconnected When the USB power supply, you can continue to keep the alarm data.SNOOZE MODE + NIGHT MODE USB clock snooze button is located on the top of the clock and can be easily turned off, allowing you to get 5 to 60 minutes (settable) of extra sleep time; night mode means that the LED automatically enters the lowest brightness display state at night,don't affect your sleep.DETACHABLE BASE + WALL HANGING HOLE When the clock is installed on the base, it's a desk clock, for desk,bedside,dressing; When the clock is removed from the base, it's a wall clock, which can be installed on the wall through the hanging hole on the back , for bedroom,Office,living room, kitchen.