Bluetooth speakers are wonderful accessories for the iPhone and other A2DP devices.  The JBL On Tour XTB speakers are no exception.  This device connects to your music source via Bluetooth or 3.5mm input.  Running on AA batteries or an AC adapter the XTBs can be used at home or on the road.

Although the saucer-like design may be an acquired taste, the XTBs do offer a lot in a 6.5” package.