ITEM NAME:DIY Black Mirror LED Matrix Desktop Alarm Clock Kit with Temperature Displa G7T9 DIY Black Mirror LED Matrix Desktop Alarm Clock Kit with Temperature Displa G7T9 This led matrix clock using two black translucent ABS to fixed up,include the pcb,screw,screw nuts and spacing column are all black.it looks mystery when it combined together. it is like a Mirror when the power down.The black ABS can reduce the interference of external light and that makes you can still read the time clearly even under the strong light. it can shows the temperature, day, date,birthday and important festival,you can select different kinds of transition animation,Or you can also select the time only mode.it can also switch the Fahrenheit and Celsius by one button. Highlighted LED Dot Matrix Screen Display. All DIP Components to Build. Black Translucent ABS Designed. 12/24 hours mode. One Alarm. 5 kinds of display font optional. 4 kinds of middle point turn effect optional. 5 levels of brightness optional. Important festival scroll display(like Valentine's Day!Merry Christmas!and so on). Switch the Fahrenheit and Celsius by one button. Birthday Remind function(shows Happy Birthday when the date is coming). 4 kinds of transition animation select can change the time,temperature,data and week(Or time only mode). Using real time clock chip,data is not lost when power off with the backup battery(backup battery not include in the kit). 5V USB cable power supply. Dimensions of the clock: 112mm x 62mm x 18mm. Color Options: blue Material: ABS Package included: 1 x DIY Black Mirror LED Matrix Desktop Alarm Clock Kit 1 x USB cable(Random color,don't accept the specified color) Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..1 x DIY Black Mirror LED Matrix Desktop Alarm Clock Kit. This led matrix clock using two black translucent ABS to fixed up,include the pcb,screw,screw nuts and spacing column are all black.it looks mystery when it combined together.