Using Problem of TDA2005R

Hello, news here!
I want to learn something about TDA2005R, and I refer to an article on TDA2005TR firstly.
But has anyone actually used it? What about it?
How much power can the power amplifier be made by TDA2005R output? What is the sound quality? I have a piece of it that has a large output power.
tda2005

How is this connected with Blynk?

Pete.