YAMAHA released the APX series of electro-acoustic guitars specifically for live performances, which were also used by Kozo Murashita, THE ALFEE, and Tsuyoshi Nagabuchi, and are now discontinued. Tsuyoshi Nagabuchi's "Hungry Model" was a custom version of this APX series. There are some scratches and dirt, but I believe they are evidence of having lived through 30 years. The controls are V (Volume), B (Bass), and T (Treble), and it operates on a 9V battery (square battery). 【Included Items】 Body YAMAHA dedicated hard case 9V battery Battery case 【Condition】 Neck: Generally straight Scale: Approximately 650mm (regular scale) Total length: Approximately 105cm Weight: Approximately 2.2kg There are some scratches in a few places, but overall it is in quite good condition. It has been stored in a smoke-free and pet-free environment. 【Operational Status】 Sound output has been confirmed when connected to an amplifier. I don't think there are any particular problems, but please understand that this is a used item before purchasing. Thank you.