Purchased around 2020. I have lost the adapter's power plug, so I haven't been able to confirm its operation for this listing. The knobs turn without any problems. There are no noticeable scratches, but there are signs of use such as minor scratches and rust. There is no instruction manual or box. *The adapter's power plug is missing and is not included. Please understand the above contents. Also, please note that returns are not accepted. ↓ Description below ↓ Ivory Yamaha THR10II guitar amplifier with a variety of effects and Bluetooth connectivity. - Brand: Yamaha - Model: THR10II - Color: Ivory - Output: 10W - Power: AC adapter - Connections: Guitar input, headphone output, AUX input - Features: Various effects, Bluetooth connectivity - Controls: Volume, tone, effect adjustment knobs