@Edent There are probably pads available for RX/TX and IO for flashing if it's ESP based 😛

It's prolly not remotely flashable if they aren't exposing TCP ports.

I'm 50/50 on far infrared. It's "okay" but the problem is even though the surfaces around you might be warm, you still breath in and feel the movement of cold air and the overall experience is somewhat, sub-par...

For me, I don't think I'd get another.