Once I spent about 30 minutes all told, they were on, and rock solid. I previously owned the Razer Huntsman Elite and Corsair K70 Rapidfire along with other Mechanical Keyboards over the past couple years. I wish these continued to bigger sizes. Necessary instructions are printed on the back, but we had worked with similar products before, so we didnt need directions. Goes great with sports wear and khakis! amplement de place pour une orthèse. This was my second pair the first pair was a little small so I sent back and ordered a half size bigger. Earplugs do this. I like the volume adjuster in an easy to reach place on the chord, and the ability to have the microphone to the right or left side. The thumb sticks have play on the potentiometers and the potentiometers have a very large dead zone AND dont reach the top left corner in both cases.