Brando start selling one of the tiniest Bluetooth adapters on the market, it's basically a USB adapter with a very tiny Bluetooth module. The advantage of this product is that you can leave it in your notebook all the time as there's little chance that it will be ripped out during transport.
According to the features the adapter supports data rates of up to 723Kbps and a working range of more than 10 meters.
Connect Most Bluetooth devices. Support A2DP up to 30Meter
Enables wireless connectivity between computers and devices
Enables connectivity to 7 Bluetooth devices at one time
Enables Wireless Personal Area Network (PAN) connectivity
Bluetooth 1.1 compliant
Bluetooth class 2, compatible with Bluetooth class 1