close-up of two knobs on a guitar amp, which are...

a close-up of two knobs on a guitar amp, which are labelled "Stunning" and "Brave." The labels suggest the knobs are used to control different sound settings, such as volume or tone, the names "Stunning" and "Brave" indicate the range of effects that the knobs can produce. The knobs are positioned side by side, with one knob on the left and the other on the right.