Short-term listing until 12/21. This is a portable amplifier with 4.4mm balanced input/output. (Includes original box, no warranty) Used indoors. No operational issues. I didn't need it in my environment, so I haven't performed any NR processing. The case is forged carbon gloss. I especially liked the beautiful high frequencies, as well as the increased thickness of the low frequencies and the wider soundstage. As a bonus, I'll include four Fujitsu white batteries. I will ship via Takkyubin Compact. Please understand that I will not negotiate on price. I will block those who still request a price reduction. Please refrain from purchasing if you are nervous about home storage. Please consider only if you can conduct a transaction with common sense. I do not wish to do business with those who cannot make immediate payment and provide a receipt evaluation within the next day of arrival, so please refrain. Returns are not accepted. *This item may also be listed on other sites, so please understand that I may cancel the sale depending on the timing. I cannot ship on Wednesdays. #Utsusemi Works #soundtiger #PortableAmp