Compact bass amplifier SOK-2B - Color: Light Blue - Volume control: VOLUME - Bass control: BASS - Treble control: TREBLE - Headphone jack: PHONE There is discoloration, scratches, and dirt due to aging. Each volume control has no scratchiness. It is useful for home practice. It is quite compact, so it is lightweight and ideal for storage and carrying. Because the color is light blue, the appearance is honestly not very clean... I have wiped it down and cleaned it with alcohol. Functionally, there is no scratchiness and it can be used without any problems. Please refrain from purchasing if you are concerned about the appearance. Thank you for viewing.