Thank you for the meal! I can offer a 1000 yen discount if you don't need the case. I was using these for telework, but my frequency of going into the office has increased, so I'm selling them since I don't use them as much. Lightweight and comfortable bone conduction headphones. - Type: Bone conduction headphones - Accessories: Charging cable - Color: Black - Design: Over-ear Thank you for looking. SHOKZ (formerly AfterShokz) OPENCOMM bone conduction headphones, microphone, wireless Bluetooth 5.0, IP55 waterproof, high-quality sound, lightweight, long battery life, for working from home, telework, and calls. They cost 22,880 yen when I bought them...! Please understand that these are used items before purchasing.