Can but you to have consider models like HG1 ($349) which have
USB input for PC.
Other model is possible but the key issue is that
certain models you be running on battery.
USB port is solely for charging the unit not for USB connection.
Unless you don't mind charging the unit quite often once
the battery deplete.
Alternate just get a cheap Creative speaker will do.
PC show just over, you may have miss some great deal.