The RK Royal Kludge RK61 Blue Switch Wireless Mechanical Gaming Keyboard is a wireless keyboard with an advanced built-in chip. Easily 3 different devices switchable with FN + Q/W/E in wireless mode will hype you up and maximize your productivity. Featuring ultra-compact layout with 61 keys that keeps you organized thanks to its practical design. Make your own unique keyboard with the hot-swappable PCB to replace 3 pins/5 pins switches easily. Allows you to use continuously about 13 hours with lightest backlit, up to 360 hours standby time.