I've been very happy with the performance of this product. I attached it to my mac os x box, and apple's bluetooth software managed the connection to my mobile phone perfectly fine. Note that this item (GBU302) comes with two bluetooth adapters. I gave the other to a friend who has a windows machine. She is happy the product as well; the software that comes with the product enabled her PDA to shared the high speed internet connection with the windows pc that the adapter is plugged in to. The range of the class one device hasn't been tested - my mobile phone is a class three bluetooth device with a smaller range (25ft), so I don't have another class one device to test the (300ft) range.
If you just want one, see the GBU301 product (B00006L4R6).
