Acoustic Tube Headsets - How good?

[maxkelley_kc2spy]

Hi all,
I'm sure we've all seen the ads on eBay for those acoustic tube headsets that come from China. I was wondering if anyone has ever bought one of them, and what you think of the quality of them? (Do they work?)
I would be using mine with a MT2000, and would also like the ability to use it with a Visar, so I was looking for one with the 3.5mm plug so that I could use it with the Visar OR the MT with the BDN6676.

Or does anyone have any suggestions? I'm looking for receive and transmit capabilities, and will mostly be using it for concerts/play productions.

Thanks in advance,

[KX5MOT]

I've never used the china ones just because I wouldn't trust them, I think most of them look chintzy. I prefer to use the Otto/Motorola brand kits, they work well.

[chrismoll12]

They work pretty good and it makes me feel like a covert agent
The audio quality is good, but it depends on who make it. The crappy chinese on ebay aren't that great but they do work and they're cheap

[maxkelley_kc2spy]

How pricy are those, and do you have any links to the products?