【Product Details】 Sony WF-1000XM4 Color: Black Purchase Date: June 2021 【Condition of the Product】 Includes accessories such as ear tips, charging case, and charging cable. No outer box or instruction manual. The M-size ear tips have been used for a long time and show signs of wear and tear. Repaired due to battery failure. Battery life is not particularly problematic, and they are still fully usable. Cleaning and disinfection will be performed before shipping, but please understand that this is a used item.