Purchased in October 2024. I mainly use headphones, so I only used these about twice a month, for 1-2 hours each time. I have only used the included ear pads, except for trying the medium-sized gray ear pads that came with the product once. There are no issues with the sound. As this is a used item, there are some minor scratches and scuffs, and signs of use. Please refrain from purchasing if you are sensitive to these details or are looking for a product in new condition. *Please refrain from price negotiations and returns. The SE215 Special Edition Sound Isolating Earphones deliver clear sound and rich bass, and the detachable cable allows for wireless use (sold separately). The innovative sound isolating design naturally blocks out surrounding noise. You can enjoy an immersive and superior listening experience anywhere.