Pair your computer with the keyboard you deserve! With no wires and an ergonomic design, typing has never been easier or more comfortable. No software downloads! Simply plug in the usb receiver and it is ready to use right out of the box. Included: 1 Owners Manual(s) Features: Plug And Play, Battery Operated Battery Type: Alkaline Tech Compatibility: Windows Measurements: .98 Height/Inches, 5.12 Width/Inches, 17.2 Length/Inches Battery Size: Aa Material: Plastic Country of Origin: Imported