... are skilled in the designs of highly reliable power supply, I/O signal optical isolation, dual RAM redundant, interference-free ... with the exception of audio processing (i.e. audio equipment, radios etc.), visual processing (i.e. webcams, digital cameras, DVD etc ... . video cards, mousse, USBs etc.), toys, digital products (i.e. mp3, cell phones etc.). (4) Developed productsElectromechanical products, ...