The Keydous official store provides Keydous Care+ after-sales service. Keydous products come with a one-year manufacturer warranty, and if there are any usage issues or non-human-caused damage, please contact Keydous directly for professional after-sales service. The keydous driver allows you to customize your desired layout more simply. Mainly to remap keys; set up key macros; customize RGB lighting effects; adjust wireless modes and RGB sleep time and share or download other users' key binding and RGB settings. The driver is compatible with both Windows and Mac systems. Bluetooth+2.4Ghz+wired connection modes, allow to connect up to 5 devices, including desktops/ laptops/ smartphones and tablets, for smooth and efficient usage in multiple using scenes. The Bluetooth 5.0 chipset ensures fast and stable wireless connectivity. The clickable aluminum alloy knob can adjust the device's volume in default. Can be rotated infinitely to the left and right with a soft tactile feel. Can be also programmed to other functions in the driver, and replaced with your customized knob types. The premium built-in Rogers INAOC Poron foams reduce unnecessary noise and hollow sound when typing on the mechanical switches. The foams are installed between the PCB and the plate, as well as at the bottom case, providing an enjoyable and sheer typing feel. The Hot swappable PCB allows to swap the switches easily with a switch puller without soldering. Enjoy the charm of different switches and find your desired typing sound and feel. Supporting most of the 3 or 5 pins switch types in the market. Carefully selected PBT with 90% high concentration provides unique matte texture on the surface,like caressing soft sand. The high-end dye-sublimation printing technology produces sharp and clear legends that are not easy to fade or get oiled even with long-term use. The ergonomic Cherry Profile is not easy to cause fatigue with long time use. Upgrade your typing experience by moderately pre-lubed switches and stabs that bring a buttery smooth typing experience right out of box.The clean white appearance provides a pleg aesthetic.The neat 75% layout greatly frees up desktop space, allowing more movement for the mouse. Now NJ80 has been upgraded to AP500 version with new features of Bluetooth,2.4Ghz and wired programmability and customizability of the dynamic lighting effects in the driver.The new driver with new UI interface allows to customize your desired layout more easily and efficiently.FN key can be reassigned to any key for using the FN shortcuts to your preference.