Features: This digital clock set features a 99.9% assembly success rate with pre soldered components, combining STEM learning and practical electronics through its 4 digit LED display, temperature monitoring, and power off memory functions. The diyer soldering project includes seven customizable animations, automatic brightness adjustment, and time temperature display, powered by a preset microcontroller for precise measurements and alarm/light control customization. Ideal for electronics enthusiasts, STEM educators, and diyer hobbyists seeking hands on soldering practice or educational tools, this set serves both functional and decorative purposes in workshops or classrooms. Display real time temperature and clock data in homes, offices, or labs while showcasing soldering skills through its acrylic casing – a functional art piece blending technology and craftsmanship. Pre programmed with plugs and play functionality, this electronics learning set simplifies circuit assembly while teaching cores principles like component recognition, PCB soldering, and microcontroller applications. Specifications: Component:ABS,Metal Number of digits: 4 digits Power supply type: USB Color:Red,Blue,Green Size:Approx.81mm/3.19''x81mm/3.19'' Package Includes: 1Set Electronic Clock note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.