Clear vocal particles
My sister has one of these things, there’s a bit of an echo. There also seems to be a timer because it kept shutting off. It’s kinda cool, it’s really just a speaker and some tiny mics.
Thank you that help me decide. 
I have one of these and actually it’s not bad. Mine has a few voice changer modes and the echo that many hear out of the box can be turned off. I believe it’s by pressing one of the buttons and holding it down? I did it but it sleeps my mind how. I found it on the internet though.
This is also good if you are doing any type of presentation as it acts as a little PA system too.
The mikes are plastic and delicate, no military grade drop protection with this thing. So it’s not horrible but it’s ok. Just try not to drop anything on a hard surface.