New version is coming!! Since 2015.4.16,all Electronic Clock Kit are new version
Not included the box!!!!!!
How to use and how to soldering:

https://copy.com/Eqw4ijkLeuwFior7
https://copy.com/32AXlRyVf0mDA2xf

Description:

Size: 81 mm x 81 mm x 1.6 mm
PCB thickness: 1.6 mm
Materials: FR4 military level
PCB color: blue
DigitalTube display: red
Power supply voltage:  miniUSB, external connection  5V ,3V button battery for clock chip on the board of the standby power supply

Package included:

1 x Rotation LED Electronic Clock Kit