I used it once or twice a week for about a month. Since I haven't used it much, I believe the battery is fine. I haven't experienced any problems while using it. It works perfectly. I think it has the best sound quality among open-ear headphones. Please refer to the official website for product details. Alcohol cleaned. I carried it in a bag, so there are small scratches on the case. Also, there are no other accessories besides what's in the photos.