I appreciate such a well-built product. It works exactly as advertised and the only reason I didn't give it 5 stars is because the side switches are a bit small. You have to use a pen or the tip of your fingernail to turn the different channels on or off, but this is a minor problem. Good product!
I would like to thank the company for their excellent service. I asked a lot of questions and answered them all. My portable unit broke and I was quickly picked up and back on duty. I block those who need it I bought 4 different items from this company and everything is fine. thank you very much.