DDIY Spectrum Crystal Column Soldering Project Electronic Project Kit DIY Parts Beginners Learning Welding Assemble Optical Cube Acoustically Controlled

?[Assembly Instructions]: It is recommended that you read the product assembly instructions to improve the success rate and efficiency of assembly. We also have detailed instructions for assembling the products. ?All instructions are available from Customer Service.? ? [Product Tips]: PCB's color and parameters may be different. We guarantee that the function of the product are not affected. Please do not make any bad comments in this regard. If you find a problem with the description, please contact customer service. ?[Transportation Notes]: Due to air transport problems, all products are ?not? equipped with batteries and glue. ?[Product Distribution]: If you receive products that lack components, please contact us as soon as possible. ?[Company Information]: We are a professional manufacturer of electronic DIY components. We produce all kinds of electronic soldering products and related equipment. Welcome to wholesale. Please contact ? us by e-mail: liushilin123456@outlook.com. Appreciate.