Thank you for viewing. Please check the images carefully. Sony SONY Earphones - No box These were used with a Sony Walkman. Sound operation confirmed. The manufacturer's product number and model number are unknown. There are no remote control switches, etc. There may be oversights, so please be sure to check the photos. Used There are stains, wrinkles, and age-related deterioration due to long-term storage. In the case of shipping via regular mail or Letter Pack, we cannot compensate for loss or damage. ★Please bid only if you understand that this is a home-stored item, used item, and recycled item. Thank you for your understanding.