The importance of headphones can vary depending on what type of gamer you are. For first-person shooter buffs - especially those who enjoy online play - they can be invaluable. A good set of headphones will allow you to hear exactly where someone is in relation to your character. It's the reason why the genre's top E-sport players use the best available. There's also the microphone: An important aspect of any online game, not just first-person shooters. When you need to talk to your team/organise a raid/swear at someone giving you hell, you want to make sure that what comes across isn't just a load of static.