Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nice but big?

Great standard bluetooth adapter. I was looking for something with a little smaller profile to avoid the pen stuck in the side of your PC look, but this seems to be one of the smaller units.I have used it with various bluetooth devices and works like a charm. There seems to be some latency when you are first picking up a device, but that may be just the bluetooth protocol part. Something to keep in mind as you consider other units.