Ambidextrous Mouse: The compact, portable optical mouse is comfortable for both left- and rigt-handed users, and can be taken anywhere your work takes you Plug and Play: The included USB receiver provides a reliable wireless connection up to 10m away ; no need for pairing or software installation to use this keyboard and optical mouse combo Extended Battery: Say goodbye to the hassle of charging cables and changing batteries and get up to 3 years of battery life for the keyboard and 1 year for the mouse with MK235 Durability: The keyboard of the Logitech MK235 wireless keyboard and mouse combo features a spill-proof design, anti-fading treatment, and sturdy tilt legs ">