Great Soldering Learning KitsThis DIY Electronic Clock Calendar Kits need to weld and assemble by yourself. it's not only as a gift but also a soldering project designed for electronic lovers students and beginners to practice electronic knowledge and soldering skills. can bring a lot of joy for you and your kids also as a great Christmas gift. Power-off Memory FunctionAfter the electronic clock is powered off the background will automatically go away. you needn't to set the time again after power on. Manufacturered by YEMIUGO. Multifunctional OperationThis electronic clock can set 8 alarm clock and 12 birthday reminders Say goodbye to forgetting birthdays of your family or friends. The Clock back is equipped with a bracket and a hole which can be mounted on the wall. Working voltage is DC 9V-12V Easy Assembly: In addition to teaching basic mechanical and electronic principles the clock kit is easy to build and is so simple. The connection that was clearly mapped and labeled on the board makes it easy to assemble. It's often used to teach basic soldering skills. It's a great first kit for any STEM student. No programming is required. Super Interface DisplayThis Electronic Clock with 1-inch large digital tube time display and 0.5-inch calendar and temperature displays Bring a very comfortable visual experience to you.