Authentic product purchased in May 2024. Used a few times a week primarily for training at the gym. ・Usage environment: Non-smoking, no pets ・Operation confirmed ・Sound quality and battery are both fine ・No drops or water submersion There are no major noticeable scratches, but please understand that there is some minor wear and tear due to being a used item. Accessories: Complete (Charging case / Earphone units / Cable / Outer box, etc.) Highly water and sweat resistant, and designed to stay in place during exercise, recommended for those looking for running or gym earphones. Instant purchase OK. Feel free to comment if you have any questions.