Used for home practice. Operation has been confirmed. This size of amp head uses vacuum tubes. 20W 8Ω MIN ■ Vacuum tube 12AX7 (preamp only) ■ Output terminals: Speaker output, headphone output ■ Dedicated power adapter included ■ Dimensions, weight: 16.5 x 13.5 x 9.2 cm, 850g Dedicated case included Dedicated speaker box included Included power cable One connection cable The Micro Terror's dedicated case is something I imported from overseas, making it quite rare. The retail price was around 46,000 yen (excluding tax) for the set. This is a vacuum tube amp that is perfectly suitable for home practice and small venue gigs.