With this digital clock DIY kit, you can make a creative clock by yourself. It looks very simple but practical for use.

Features:
Adopts DS3231 high precision clock chip(with temperature compensation), it can still accurately travel time after powered by backup battery.
Gravity sensor function, it can show time normally when you turn over the clock.
Special dot matrix design, reminding important festivals and alarm clock function. 
Large digital LED display, can show you time/temperature/date/day clearly.
The font and the display effect can be switched freely.
Has hourly and half hour chime functions(07:00-23:00) with slight buzz alarm.  
Ideal digital clock DIY kit for electronics enthusiasts, easy to install. 
Can connect with USB interface for power supply, convenient for use.   

Specifications:
Power Supply: USB Interface / 1 * 3V Button Battery（NOT included)(ONLY for travel time, will not display)
Display: LED
Dot Matrix Size(1pc): 4.5 * 2.8cm / 1.77 * 1.1
Acrylic Board Size(1pc): 10.4 * 8.4cm / 4.1 * 3.7in
PCB Size: 10.4 * 2.8cm / 4.1 * 1.1in
Package Weight: 142g / 5.02oz

Package List: E0773
1 * Electronic Clock DIY Kit
1 * USB Cable