Whether or not you can derive value from the Air at work depends on how loud you can play it, how you place it and whether you have access to wifi. The Freedom is quite easy to lug around. I've been using a free app called Vradio to listen to internet radio. The Vradio app is excellent and has built-in DLNA/uPnp support so I don't have to use Bluetooth.

House of the Rising Sone
Out in the mid or far field
Linearity and mid-woofers are over-rated