Checkout the Jambox
At 199.99 list price it has amazing sound up to 85db with bluetooth connectivity. Can listen to music and one can even make handsfree conference calls since it has a built in microphone too!
It runs up to 10hrs on the rechargeable lithium battery pack. This unit puts out impressive sound to fill a large room with its woofer and tweeter system built in to such a small package. I would recommend this unit for those tired of being tethered to their smartphones and likes to multitask while listening to streaming music or media, etc. An additional safety bonus, if one just has to talk and drive as it does provide handsfree capability in cities where its legal to talk and drive.