Hi Mary, I love my Voice Amplifier! I mean really LOVE IT! I am a professional speaker/trainer representing Park University. I travel all over the country speaking & training to very large groups & my voice was becoming stressed. I tell all of my audiences about the Voice Amplifier, show it & direct them to Voice Aerobics & tell them how great it is for meetings, training & presentations. I also had my line dance instructor use it & he loved it.