I bought this this year, but I haven't used it much. The condition is quite clean. 【High Sound Quality】 SONY's WH-CH520 offers clear sound quality, allowing you to enjoy music and movies more. 【Long Battery Life】 Boasting a battery life of up to 50 hours, you can use it for extended periods with peace of mind. 【Comfortable Fit】 With soft ear pads and a lightweight design, you can wear it comfortably for long periods. - Brand: SONY - Model: WH-CH520 - Color: Blue - Type: Wireless Headphones - Battery Life: 50 hours - Connection Type: USB-C Thank you for looking.