The A40 TR Headset + MixAmp Pro TR is the ultimate wired gaming headset. Why? Because the audio functions can be set in any way possible. Use the MixAmp Pro and Astro Command Centre software to select the balance between the sound of incoming chat messages and the sound of your games the way you like it best. The spacious sound of the headset is produced by the 7.1 surround sound. This makes your gaming experience even more intense. Switching between your PC and PlayStation 4 is now easier and more intuitive than ever before via the MixAmp. You can switch between the 2 with 1 press of a button. You can easily remove the microphone from the Astro if you're not using it.