Comes with Alkaline batteries installed. Tested working on Windows 11. The dongle was relocated to inside the keyboard battery compartment.

Features

• Wireless freedom and instantly familiar typing experience
• Contoured mouse for ultimate comfort
• Long-lasting batteries for reliable, hassle-free use
• Spill-resistant keyboard; abrasion-resistant key Printing so keys won't quickly fade
• Hot keys for enhanced productivity at your fingertips