The Satechi Swift BT Speaker is a surprisingly affordable little speaker (at just $29.99) that performs quite well. It's small and fairly stylish, and though its functions are about what you'd expect from a Bluetooth speaker, the Swift accomplishes them with an understated flair that I really appreciated.
Setup is pretty standard for any Bluetooth device. You need to turn the speaker on, hold down a button for six seconds to put it into pairing mode, and then flip your iPhone's Bluetooth on and pair it up. Once that's done, the Swift works almost automatically. Whenever you're in signal, the speaker will connect up to the phone, and you can share audio signals across between the two devices.
The best use I can think
