Sennheiser GSP550 open-back headset. I purchased this new on Amazon and used it for about 2-3 years (3-4 hours on weekends), but I'm selling it because I switched to a different headset. There is a minor issue: sometimes, sound only comes from one side (it usually fixes itself when adjusting the volume dial). I'm not sure if it's a connection issue, but I've priced it lower to reflect this. The microphone and other functions work without any problems. Because it's an open-back headset, the soundstage is excellent, and I feel it's perfect for FPS games. As a bonus, I'm including a 3.5mm analog plug. This allows for audio output and microphone input through a desktop or external sound card. It's also recommended for those who have their USB sockets occupied. Everything in the photos is included. This is a used item and shows some signs of wear. Returns, refunds, and cancellations are not accepted under any circumstances. Please only purchase if you can provide a receipt evaluation within 24 hours of the product's delivery. I do not have any pets, and I do not smoke. *Due to the issue with the product, I cannot offer any discounts. Thank you for your understanding.*