Check the listing for details. Logitech MK270 Wireless Keyboard And Mouse Combo For Windows, 2.4 GHz-[Open Box]. Color: Black, Condition: Open box. Listed at 24.99 USD. Please read before purchase:This is an open box condition item, the product still in original box in working condition. Some wear or tear may on the box itself. From the manufacturerLogitech MK270Reliable Wireless ComboPower through your workflow without missing a beat. MK270 is purpose-built for uninterrupted wireless connectivity, battery power and personal performance so you can focus on the task at hand instead of technical difficulties.Previous pageLogitech Advanced 2.4 GHz wirelessYou get a reliable connection up to 10 meters away, with virtually no delays or dropouts—even in the busiest wireless environments.Next page Shortcut and media keys at your fingertips " data-position="triggerHorizontal"> Quiet, comfortable, well-spaced keys " data-position="triggerHorizontal"> Long battery life " data-position="triggerHorizontal"> Built-in Number Pad " data-position="triggerHorizontal"> USB wireless receiver connects both devices " data-position="triggerHorizontal"> Comfortable optical mouse " data-position="triggerHorizontal">System RequirementsWindows XP, Windows Vista, Windows 7, Windows 8,USB port