RK ROYAL KLUDGE is a manufacturer specialising in high performance professional gaming keyboards with 10 years of experience.Royal Kludges goal is to provide gamers with professional gaming keyboards with high quality craftsmanship, classy feel and high performance. We are always striving to provide you with more suitable products.RK ROYAL KLUDGE has professional engineers and R&D team to provide you with high quality design and production. We are passionate about creating high quality, innovative mechanical keyboards designed to enhance your computing experience. We believe that mechanical keyboards should not only be powerful and reliable, but also customisable and great looking.We are committed to providing our customers with the best possible experience. Whether you are a gamer looking for the ultimate gaming keyboard or a professional looking for a reliable and efficient typing experience, we have a keyboard for you.About this item65% Layout Compact Keyboard -- RK837 wireless mechanical keyboard is 65% full size with compact 68 keys, with 3150mAh large capacity battery and dismantling border. Which is solid, stable, portable, and durable. Its the best choice for working, gaming, traveling, and business trips.3150mAh Massive Battery for Long Life Use-- The RK837 wireless mechanical keyboard, is powered by a high-capacity 3150mAh battery. You can easily go through 7 days of daily use. 3-4 hours of fast recharging time will bring it online ASAP. Satisfy your productivity and entertainment needs.Hot Swappable Linear Switches -- RK837 wireless hot-swappable mechanical keyboard, supporting 3-pin/5-pin switches. You can replace mechanical switches and keycaps whichever you prefer without the need to solder. For white-collar workers and game lovers. Linear switches make the typing sound more pleasant and allow you to enjoy the perfect gaming and typing experience.BT5.1/2.4G/USB-C Connection -- This computer keyboard has three connection modes: Wired, Bluetooth 5.1, and 2.4GHz, easily switches between 3 different wireless devices, and no longer limits the connection possibilities. Built-in 2 built-in USB pass-through ports and 1 Type-C port, this wireless keyboard is allowed to back up more facilities and works for long-time gaming/working.Programmable Macros Function -- In this compact keyboard layout, all 68 keys support N-key rollover, ensuring that every key and combination of keys can be remapped to perform intricate commands. For the RGB driver download of the RK71 keyboard, please visit: the official website of RK ROYAL KLUDGE (this program is currently only applicable to Windows systems)RGB Backlit & Detachable Frame -- This mechanical keyboard has 18 RGB backlight modes. More backlight colors and effects are also customized through RK ROYAL KLUDGE software. The detachable frame makes the keyboard lighting more transmitted. Brings you unique and cool visual enjoyment.Switch difference:Blue Switch: Blue Switch can offer faster and more elastic response, crisp click sound for spring typing enjoyment, accurate tactile feedback for ultimate gaming performance.Brown Switch: Swilly quieter and easier to activate than Blue Switch. Halfway between a writing switch and a gaming switch. Some people prefer it bitch since it sat down. It allows you to touch twice FASTER and typists like it BECAUSE it has still been a good tactile response. But the audio feedback is not as noticeable as Blue Switch.Red Switch: Linear switch, which means that the force at the beginning and end of each stroke is almost identical. The result is a feel that most perceive as smoother and faster, making them especially popular with gaming enthusiasts. The best-fitting switch used in Office.Trigger strength: blue > brown = red Tactile feedback (sound): blue > brown > red Whats in the box1 * RK837 Mechanical Gaming Keyboard1 * Keycap Puller1 * TypeC Cable4 * Brown Switch Replacement4 * Keycap Replacement