Purchase price: ¥37,800 - Model: WF-1000XM5 Black - Brand: SONY - Features: Hi-Res, Noise Canceling, Microphone for calls (smartphone, PC) - Color: Black - Accessories: Cover only Purchased about 2 years ago. Used approximately once a week on average. Selling because I bought different earphones. Used with a Spigen cover. Charging/sound quality haven't changed significantly since purchase. I don't feel any battery degradation, but please consider this as a reference only.