Works instantly!!

Easy to use no useless extra features, everything just as described

Although there are many sound boosters and they are similar to each other, this one is the very best one I have used. It precisely clicks any amount lower and higher in volume. No need to use the slider. Also has keyboard keys to use for increase and decrease.

Sería bueno que tuviera un apartado donde se puedan consultar los atajos de teclado

It works as intended

Its very nice