I so love the first Vocal Trainer I bought that I just bought another one to have one in reserve! I leave my little guy #1 out in plain sight and just grab it when the inspiration strikes to sing through it. It has really opened up my voice bigtime, and I actually found impressive results the first time I tried it. I'm always singing around the house anyway but using the Vocal Trainer works to improve many aspects of voice just by singing through it. I tell people it's my favorite device of all time, and worth it's weight in gold. I am not paid to say this, and I hardly ever leave reviews, so give this amazing little device a shot. It really works.