This item is very lightweight but with some good microphones it's a pretty good system for someone who wants a little karaoke device.

I already owned a cheap microphone, so I plugged it in, adjusted the levels, played with the reverb and echo (I prefer just a bit of reverb) and handed the mic over to my girlfriend

I also bought two 2 Nady SP-4C dynamic microphones for 10$ each from Amazon with this and they sound great and at ten bucks each with free

This means that you can download one of the karaoke apps on your Roku, add some good microphones like a couple Shure PG58's and don't have to worry about voice cancellation and can play the lyrics on your television right from the video output on your Roku.

Sound quality is good and it has two adjustable microphone inputs which is nice

I recently bought this item along with the recommended dynamic microphone

These settings are good with cheap microphones.

This is an awesome microphone mixer