“It's a speaker. The impedance is 4Ohms. There are wires and mounting holes. There really isn't much more to say... Sounds okay, but I have only tried it without any kind of enclosure. I'm sure it sounds better when it's mounted to a closed space.”
“It works as well as expected. It plays quite loud, so I can hear it in a large room. I would not use it for playing music, but I don't really think it's intended for that use, so only note this for reference.”