digital alarm clock, 6" large mirror surface led clocks with dual usb charger ports, auto/custom brightness,easy snooze function, alarm clocks for bedrooms nightstand (black) ygon <b>modern design led digital alarm clock</b><br> 1.large screen led display<br> 2.brightness adjustment: automatic or manual<br> 3.three levels of brightness are available: bright, medium and dark<br> 4.four-digit time display: hour, minute (12/24 hour system)<br> 5.the snooze function can set an unlimited time from 5 to 60 minutes. ring every 5 minutes.<br> 6.built-in cr2016 button battery. two usb ports can charge the phone.<br> 7.very suitable for placing on the office desk or in the bedroom<br> <b>note</b><br> 1. due to long-distance transportation, some scratches will appear on the protective film. please remove the protective film before use. (hint: since our protective film is very thin and fits well, it takes a little patience to find and tear it off.)<br> 2. the clock has a built-in button battery. it can only retain time memory when power is off, and cannot support digital clock lighting. save time to adjust the display time.<br> 3. please take out the plastic insulation sheet from the button battery box on the back, and then connect the product to the power supply via usb or adapter.<br> 4.this clock can only be used when powered by usb powered.<br> <b>specification</b><br> working voltage : 3-5v<br> size : 6.2 x 3.3 x 0.5 inches<br> style : fashion, modern, stylish<br> <b>package list</b><br> 1 x led digital mirror alarm clock<br> 1 x usb cable<br> 1 x user manual<br> 1 x alarm clock bracket<br> 1 x pakage box<br>