Come and see our amazing products. LED display, sleepiness, alarm clock, dual USB output, time memory, automatic dimming. Compatible with Apple and Android phone charging. High sensitivity photosensitive sensor is adopted, which can automatically adjust the display brightness according to the ambient light or manually set the high, medium and low brightness. Built in a CR2016 button battery, when the external power supply is powered off, the time and various settings remain unchanged, and the time is not displayed after the external power supply is powered off, so as to avoid repeated settings next time Pls confirm further with us if any query about packing info, inventory status and time schedule.