When it comes to any mechanical keyboard there are key switches under every key cap, these are what after being pressed activate a key press. There typically three categories of switches, Tactile which when pressed has a bump so it feels like two presses at once, Clicky which are the loud clicky ones, then the ones I chose are Linear which are more smooth feeling and a better sound overall. My linear switches are Banana Split which look really cool and sound amazing. Also a mod you can do to switches are opening them and adding switch lube to make things slide better and sound good.