If you are having difficulties with the Astro A40 TR Headset, try referring to the troubleshooting page.
Background and Identification
To make sure this device is yours, you must remove the magnetic ear pad on the left side, under it you will find a sticker that reads A40TR and then the rest of the attached digits will be the production number.
The A40TR is a high quality gaming headset that can be used on new Gen consoles, and PC. It features a 6mm omnidirectional noise gate, a 3.5mm 4 pole jack, a 20-24,000 Hz frequency response, and less than .1% noise distortion rating.