Learn to Solder Kit: Hue ALL THE COLORS OF THE RAINBOW - Unique & engaging project. Each dial turns to control the brightness of a color: Red, Green, Blue. Mix the colors to create any color of the rainbow. PERFECT FOR BEGINNERS - Specifically designed for people with no prior soldering experience. The high-quality parts and intuitive design make it easy to focus on learning the new soldering skills instead of being frustrated MADE IN USA - Our printed circuit boards are made in the US and every kit is packed and shipped to Amazon from our Sacramento, CA location. HAVE AN ISSUE? TALK TO A REAL PERSON! - We provide support for all our products. We love working with our customers. Any issue, big or small, please reach out to us directly. You can contact us through our Amazon Seller account or the email included in the instructions. We'll get back to you ASAP! BATTERY INCLUDED - Includes the required CR2032 battery to turn it on. No hassle running out to the store or overnighting a battery to get it to turn on.