![Does anyone know what these knows do? The one closest to the front is the volume knob. I know what they are probably for, I kust don't know the specific function : Does anyone know what these knows do? The one closest to the front is the volume knob. I know what they are probably for, I kust don't know the specific function :](https://preview.redd.it/does-anyone-know-what-these-knows-do-the-one-closest-to-the-v0-3bunzp83jxjb1.jpg?width=640&crop=smart&auto=webp&s=79abb4f9b36b36b6f3875bbbf00b370ce54908e5)
Does anyone know what these knows do? The one closest to the front is the volume knob. I know what they are probably for, I kust don't know the specific function :
![M-vave Cube Baby Guitar Multi-effects Pedal Recording Audio Interface Function For Electric Bass Rechargeable Cuvave Pedal - Guitar Effects - AliExpress M-vave Cube Baby Guitar Multi-effects Pedal Recording Audio Interface Function For Electric Bass Rechargeable Cuvave Pedal - Guitar Effects - AliExpress](https://ae01.alicdn.com/kf/S5fe3462c1e8945a09fd9500f69e925d6g/M-VAVE-CUBE-BABY-Rechargeable-Guitar-Multi-Effects-Pedal-Recording-Audio-Interface-Function-for-Electric-Bass.jpg)
M-vave Cube Baby Guitar Multi-effects Pedal Recording Audio Interface Function For Electric Bass Rechargeable Cuvave Pedal - Guitar Effects - AliExpress
![equipment - What is the function of the black strip on the lower horn of a Fender Precision bass - Music: Practice & Theory Stack Exchange equipment - What is the function of the black strip on the lower horn of a Fender Precision bass - Music: Practice & Theory Stack Exchange](https://i.stack.imgur.com/55WJR.png)