The Razer Barracuda HP-1 Gaming Headphones uses 99% oxygen-free copper cable for gaming audio signal purity. Provides for eight discrete audio drivers for optimal positional audio without compromising the gamer s comfort when using the headset. With some of the best components selected for the ultra-sensitive speaker drivers, the Razer Barracuda HP-1 Gaming Headphones delivers pinpoint positional accuracy essential for gaming. Built-in microphone is designed specifically for in-game communications featuring a short shaft for enhanced comfort and audio pickup, the microphone also features advanced noise cancellation capabilities ideal for frenzied in-game correspondence.