PRODUCT GRADING Refurbished Excellent > Very light scratches and light signs of use > Refurbished to the highest standards. Item may arrive in Non-Original Retail Packaging WHAT IS IN THE BOX Microsoft Wireless Desktop 900 Keyboard and Mouse - Black PRODUCT DESCRIPTION This simple, modern desktop set provides security with Advanced Encryption Standard (AES) to protect your keystrokes, and a full-size mouse that provides comfortable, precise navigation. Both the keyboard and the mouse have an average battery life of 2-years and each provide easy access to Windows features to keep you productive and efficient. PRODUCT INFORMATION Colour - Black Brand - Microsoft Connectivity technology - RF Operating System - Mac OS, Windows 10 Power Source - Battery Powered