From a design perspective a good microphone should be either detachable or fold back into the headset's body to be virtually undetectable when you're not using it. This allows you to more discreetly use your wireless gaming headset as a pair of headphones when you're not gaming, making it a little more versatile than a purely wired set. Although you'll mainly be using your headset's microphone for casual voice chats in gaming sessions, you'll also want to check that it has noise-cancelling technology and that the sound it picks up is clear and free of distortion—after all, your gaming friends won't want to listen to your voice for very long if it's muffled or full of static.