The Bluetooth 2.1 USB Micro Adapter from IOGEAR is a compact

Bluetooth adapter, designed with notebook use in mind. The USB device features an extremely compact form factor, allowing you to leave it attached to a notebook even when it is being transported. This provides your laptop with an "always-on" Bluetooth connection, ideal for use with wireless mice, cell phones, printers, and other Bluetooth devices.

Bluetooth Connectivity

Bluetooth technology lets compatible devices communicate with your computer wirelessly. You can use it to send documents from your PDA to printer, listen to music wirelessly, or to sync your address books.
Small and Compact
The adapter is small and compact. It's can stay attached to a notebook computer during travel, and stays out of sight when connected to a desktop computer.

USB Interface

The adapter connects via a standard USB interface, making it easy to add to almost any computer. You won't have to worry about opening your computer to install a special card, just plug the adapter into an available USB port.