HIGH PERFORMANCE + EASY TO USE. With its super low response time, the KLIM Chroma is among the very best wireless keyboards available on the market thanks to its fast membrane keys. Using it is as easy as plugging in the USB receiver and flicking a switch under the keyboard. This model also has a special Function key so you can access many useful shortcuts such as volume control directly on your keyboard. Note: multimedia keys available for KLIM Chroma wireless version only.