DIY Electronic 4 Digit Large Screen LED Clock Kit Temperature Display Red inventor Learning Electronic Kit Toy UI13 Great Ideal digital clock DIY kit for electronics enthusiasts, easy to install. Come with transparent case, components can be well protected and the clock looks stylish. Looking good Light control, the clock will automatically be brighter during the day than during the night. Large 4-digit LED display, can show you time and temperature. Useful alarm function and hourly chime function. Product include a USB cable, it is convenient to be charged.