This product has been tested, including functional testing, basic cleaning, inspection, and repackaging. Standard mechanical keyboard / Color backlit mechanical keyboard / With mouse / Multi-set keyboard / Multi-language custom keyboard Turn your Surface Pro into a high-end laptop Function keys, media controls, and touchpad Can be used as a protective cover For Microsoft Surface Pro 3/Pro 4/Pro 5/Pro 6/Pro 7 /Pro 7+ 12.3inch