The listing, O-Port has ended.
The following are their words NOT MINE
Introducing the only acoustic device ever created to enhance the sound of a guitar. The O-Port will make any guitar sound richer, fuller, louder with more clarity and better protection. It will suppress feedback, too.
Now for my words:
Is this true? Sure might be! YOU be the judge. I personally do not play guitar so I am not the pro you will want to ask. I have installed one in minimal time. It takes no wires, batteries and time wise no more than a minute or two to install this item in the sound hole of an acoustic guitar.
This was a gift to me. I have one open that I plan to keep but you will get the one that is still in a sealed box. Hey, by receiving it brand new like this you can simply give it to your favorite acoustic guitar player as a gift.
The box is nice lookin', but it does have a little crinkle on one corner. A bright reddish silhouette O-port adorns the top. (Adorns the top makes it almost sound like I could be a fashion editor for the box company. However, I am not.)
Please, realize I am not going to claim you will be a better player to make millions of dollars within a year and I won't claim that your guitar will be worthy of America's biggest stages once you add your O-Port. Maybe your living room or possibly a smaller stage might hear a difference. I wouldn't suggest a major stadium without the proper pick-up connected. But, what do I know?
Remember, I don't play guitar