7.1 channels. 0.0 wires.Enjoy legendary audio with zero hassle. You get 2.4GHz wireless freedom at up to 40 feet, and ten hours of uninterrupted gaming at a time. Genuine Dolby 7.1 surround gives you lethally accurate positional audio, and the 50mm neodymium drivers produce staggering bass, highs, and dynamic range. Marathon gaming sessions are easy with the microfiber-wrapped earpads, and you'll be heard loud and clear with the unidirectional noise-cancelling microphone.