I have been using a Moto HS820. It's actually my second one because they are kind of fragile. It works okay but does not stay on very well. The sound could stand to be louder too. It is lightweight though.

I am waiting for the Plantronics 640. It is very cool looking and I really like the design. It "lives" in a pen-like holder that also acts as a recharger with an AAA battery. The cool part is that the holder will vibrate when the a call is received. The in-ear design might turn some people off but I thing it is the only way to get good sound in noisy surroundings.

Anyone using this model? It's on backorder pretty much everywhere. I have ordered one and am waiting eagerly.

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