Airfox K500 Irina kaptelova USB Wired Keyboard for PC, Laptop, Notebook, for Windows, Mac Airfox Irina Kaptelova USB Keyboard Keys Lifecycle up to 10 Million Key-press operations.1.8 mm trigger stroke and 60g actuation force,1000 times / s polling rate, real-time quick response. The accurate scissor-key mechanical structure distributes pressure on the keys evenly, making every keystroke natural, smooth and correct. Multimedia keys give you quick access to functions like media player, homepage, volume adjustment, etc. make it easier to use.The keys cap using laser engraving technology, durable wear does not fade. Simple to use -just "plug and play". No additional software or firmware required. CE,FCC,RoHS authentication: Airfox membrane switches with 60g actuation force. 10 million keystroke life span. Stylish design p streamline design Airfox Irina Kaptelova USB Keyboard Keys Lifecycle up to 10 Million Key-press operations.1.8 mm trigger stroke and 60g actuation force,1000 times / s polling rate, real-time quick response. The accurate scissor-key mechanical structure distributes pressure on the keys evenly, making every keystroke natural, smooth and correct. Multimedia keys give you quick access to functions like media player, homepage, volume adjustment, etc. make it easier to use.The keys cap using laser engraving technology, durable wear does not fade. Size and Weight:366(L)*120(W)*18(H) mm + / - 0.5 mm /240g