??? Does The Mechanical Keyboard with Clicky Clack ? ??? - Yes, this gaming keyboard use the blue switch which offer medium resistance, audible click sound and tactile response ??? How to Control The Light ? ??? - This black mechanical gaming keyboard offer multiple rgb light modes. Press Fn + Ins to choose light mode, Press Fn + ??? / ??? to bright / dim the light, Press Fn + ??? / ??? to change speed ??? What System Does It Match ? ??? - The plug of our retro gaming keyboard is USB port, which make it as easy as plug and play. This wired mechanical keyboard adapt to Win 2000/ 7/ 8/ 10/ XP, Vista, Linux, Mac, etc ??? Durable & Special ??? - These keycaps adopt two-color injection molding process, which is durable. And the unique round keycaps make this keyboard so different to traditional keyboard ??? Both For Office & Gaming ??? - With 26 anti-ghosting keys and adjustable rear feet, this cute keyboard has good performance both in office and gaming