The boombotix speakers are pretty rad. They have a 'whatever happens' warranty and one of my buddies has sent his back after a bad spill with quick turnaround. They are light enough to clip to a backpack or messenger bag and last a good few days of commute sans charging. I own one, bought one for a sibling and the lady. They are pretty rad little toys and the bluetooth connectivity is totally worth it. I have a five percent promo code that is RIDE DIRTY or ride dirty, or maybe there are no spaces when you type it in. Try a few different ways but it will save you 5% pre shipping costs. Enjoy.
(My brother and I have bb2's and the lady has a bb1. She doesn't have any devices with bluetooth connectivity so hers was about half as cheap and is a bit louder than ours.)