lightspeed wireless technology : with high wireless performance and power efficiency, the logitech g613 is more responsive and faster than most wired pc gaming keyboardsromer g mechanical switches : the keys on the g613 deliver quiet, precise mechanical performance and 70 million click life with a short-throw actuation that?s 25% faster than the competition's standardprogrammable keys : for a gaming keyboard with improved speed and accessibility, connect to logitech gaming software and easily set up and assign commands to up to 6 keys per profiledual connectivity : enjoy super-fast lightspeed usb wireless with a 1ms report rate, and easily switch to and control a wireless gaming mouse or other device at push of a button thanks to bluetooth connectivityhigh-performance : designed for the wireless world, the g613 mechanical gaming keyboard can be used for up to 18 months without recharging