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 List， show the same as the Main Photo( as below)