All products in our store are designed and manufactured by we. We have been dealing with this since 1992 and are based in Bulgaria, Europe. We design and manufacture assembly kits, assembed modules, printed circuit boards and non-standard electronics. Assembly kits include all necessary components, printed circuit boards and instructions for assembly. Each item is inspected before being placed in the kit. All assembled modules are handmade assembled and tested by us. We guarantee with our name for each product we produce.