Brand: LogitechColor: BlackFeatures: Sleek full-size wireless keyboard with softly rounded keys for hour after hour of typing comfortContoured invisible optical mouse that tracks on just about any surface with rubber grips and smooth accurate cursor control (The optical sensor does not work on glass or mirrors)Virtually no battery changes get up to three years of battery life for the keyboard and eighteen months for the mouse( Keyboard and mouse battery life may vary based on user and computing conditions)Powerful 2.4 GHz wireless and one tiny Logitech Unifying receiver give you a reliable connection without delays or dropoutsWorks with Windows-based PCsLogitech has different serial numbers for packaging vs. product please keep your receipt for warranty purposes.Hardware Platform: pcLegal Disclaimer: PLEASE READ: ALL SALES ARE FINAL. WE RESERVE OUR RIGHTS TO REFUSE ORDERS THAT DO NOT COMPLY WITH OUR POLICY. PLEASE DO NOT PURCHASE IF: - Buying more than 1- Shipping to PO Box APO/FPO HC Box HAWAII PUERTO RICO or ALASKA- Organization or commercial/ non-residential addresses (hotel school cargo company hotel...) or to someone other than yourself- Cannot allow a maximum of 14 business days (3 weeks) for delivery- Tracking will not be available right awayBilling amount might appear different on invoice included with packing. However you only pay the listed price on this listing. WE DO NOT HAVE YOUR CREDIT/DEBIT CARD INFORMATION as Amazon NEVER shares this info to a 3rd party.Thank you for your understandingOperating System: Windows XP Windows Vista Windows 7Platform: Windows 10Publisher: LogitechDetails: Advanced 2.4 GHz wireless Instant media access Adjustable tilt legs Easy keyboard storage System Requirements: Windows XP Windows Vista or Windows 7 USB port Internet connection Package Contents: 1x Wireless Keyboard K520 1 x Wireless Mouse M310 1 x Logitech Unifying Receiver 3 x AA alkaline Batteries (pre-installed) 1 x Receiver Extender Cable 1 x User documentationUPC: 999992765694EAN: 0088037826374