Electric upright bass with a blue body, volume control, and sub-bass control. - Color: Blue - Model: KYB-200 - Features: Volume control, Sub bass control, AUX in, Headphone out Thank you for viewing. I purchased this bass a few years ago and have only played it about 10 times at home. When listing it, the volume switch was faulty, so I replaced it with a new one. Additionally, I replaced the sub-bass switch and battery box with new ones. The replacements were done by a professional at a bass specialty store. However, one of the screws for the battery box is missing (this does not affect use). I spent about 17,000 yen on maintenance when listing it. Therefore, I believe the quality is quite good among used items. Due to the large size of the item, please understand that it may take a few days to ship.