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