Please note that shipping is unavailable from December 31st to January 2nd. This price is valid until January 5th. The price will increase by approximately 2000 yen from January 6th (due to the end of the 7% commission campaign). This is a portable amplifier with 4.4mm balanced input/output. (Includes original box, no warranty) Used indoors. No operational issues. I haven't performed any NR processing as it wasn't necessary in my environment. The case is black aluminum. There are some scratches on the acrylic plate. The sound is like listening to remastered rock and jazz. You can clearly hear everything from the drum kicks and the undulating basslines to the cymbals, and the vocals are not drowned out, allowing you to enjoy the music very well. Includes 4 Fujitsu black batteries and a charger. Will be shipped 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 overly sensitive, as this item is stored at home. Please only consider purchasing 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 day after arrival, so please refrain. Returns are not accepted. *Please note that I may also list this item on other sites, and it may be canceled depending on the timing of the sale. Shipping is unavailable on Wednesdays. #UtsusemiWorks #soundtiger #PotaAn (Portable Amplifier)