Keyboard has never been used and mouse was used for one day. I missed the return window and just trying to free up closet space. The Logitech MK710 Wireless Desktop Set consist of a black keyboard and mouse with a sleek design and wireless connectivity. The keyboard features keys for calculator, photo gallery, volume control, application launch, and media player functions. The mouse offers a maximum DPI of 1000 and includes keys for mute, zoom, play/pause and efficient keyboard and mouse set for improved productivity and convenience.