▫️ Portable headphone amplifier with built-in DAC ▫️ Size: 51 (width) x 21 (height) x 82 (depth) mm ▫️ Product details: Manufacturer's manual ↓ https://www.hibino-intersound.co.jp/download/3984.html It's been a while since I purchased it, so there's some wear and tear, but operation has been confirmed. No case, includes the main unit and a cable (may not be the original). Please note that this is a used item, so no claims or returns will be accepted.