I have to many keyboards so my gf is making me sell one of my 5. This one is tri mode wireless. 2.4g, bluetooth and USB c. It has 5 layers of sound absorbtion. The main switches are leobog greywood v4. And the 10 other switches are ones I made that have 45gf. All switches are lubed. The is a thocky sounding keyboard. Switches are linear non clicky. 4000mah battery for the wireless modes.