It has input selection, master volume controls, independent channel balance and high, plus, low frequency adjustment
NATURE IN A BOTTLE: Voice37 includes all-organic herbs, selected for their soothing and lubricating effects on the voice.Voice37 gets rid of the bad while keeping the good (your beautiful voice, of course!) – all in a natural way. That’s why you want a remedy that won’t do any damage to your voice. FOR SINGERS BY A SINGER: As a singer, you know that your vocal cords are extremely delicate (and precious!).