This is the Antelope Audio ZEN GO. It is now discontinued and no longer available. I've used it for about 3 years, but it's been kept in the studio, so it's in good condition. Operation confirmed, deactivated. Original price: approximately 80,000 yen. It's a great product with excellent cost performance. Cleaned. A high-quality Oyaide cable is included as a bonus. Original price: approximately 5,000 yen.