Most people had tough operating experience due to Smart Phone small screen size and inconvenient software keyboard. By this product, you can easily share your current computer peripheral equipment (like computer LCD screen, USB keyboard and mouse) at home or office with your Smart Phone/Tablet devices. Just one touch (Alt+F2) on USB keyboard to switch Smart Phone screen to LCD, and the same one USB keyboard and mouse can be used by Smart Phone. Then, just 1 touch (Alt+F1) to switch PC screen back to LCD, and the same one Keyboard and Mouse can be used by PC.