Pros: I used it with me Sony Ericsson W810i and it works perfect. :) That is awesome given the fact that my phone doesn't have A2DP which all other bluetooth headsets require in order to work.
-This is one product that give you total value for money. Though some may feel its little pricey but it is totally worth the money.
-If you love great sound and feel you have heard it all, then this headset is going to change your mind for good. The sound will "blow your mind".
-Its Battery is very good and they mean it when they say it lasts more than 7hrs +
-Making and receiving calls is very easy too. Rather i had bought it for listening to music but i love talking on phone with this. It makes the whole conversation so easy.

Cons: If i have to have to write something here i'd say that the software can be improved a tad bit. But still its great!

Other Thoughts: Being so far in India i expected my order to come in about a month it came in a week!!! It was a great surprise to get it so quick. Deal Extreme is a great place to shop. They are highly efficient and I had a great experience with them.

Bottomline: I highly highly recommend this product!

Pros: Full A2DP Support with embedded DSP
Headset profile (microphone built in)
Sound quality is GREAT
Very small - 3 inches long, by 1 inch wide by 1/4 inch thick (approx).
Good battery life

Cons: Pricier than other receivers on DX that claim to do the same thing. MSI is a name brand though, and this unit really does sound fantastic.

Other Thoughts:

Bottomline: If you are like me and hate the sound quality that you get with most bluetooth headphones, and you would rather just use your own headphones, this unit is perfect. For me, the embedded microphone and headset profile is more of a perk, but a welcome one. I use this both with my CDMA HTC Touch and home PC, and it really makes the Touch a complete media device.