Please check the profile before purchasing. This is a genuine domestic product. I purchased it about a year ago and used it about once a month indoors at home. I personally think it's in good condition, but there may be some areas I've overlooked. Please refrain from purchasing if you are looking for a new item or are very particular about condition. The storage case will be folded for shipping. The main unit will be wrapped in bubble wrap and packed in a cardboard box, and shipped free of charge and anonymously. If you have any questions, please confirm before purchasing. SHIN'S MUSIC volume knob for amplifiers. By connecting it to the send/return of the amplifier, it can be used as a master volume and attenuator. The following is automatically generated: Custom volume control. - Brand: Shin's music - Model name: Baby Master2 - Function: Custom volume control - Connection terminals: IN/OUT terminals - Country of manufacture: Japan Thank you for viewing.