Lightweight and comfortable bone conduction headphones. - Brand: SHOKZ - Model: Bone Conduction Headphones - Color: Black - Accessories: Charging cable, carrying case Purchase date: June 30, 2024 Product warranty and purchase history included. 2-year warranty still valid. Used daily since the purchase date. Currently working without any issues. There seems to be a slight lag when charging, but charging is possible. I feel the battery life hasn't changed. Please understand that this is a used item. There are no noticeable scratches or stains, but please refrain from purchasing if you are sensitive to such things. Thank you for looking.