Tech-Life BeatBlock - Wireless Bluetooth Speaker: Rechargeable, Ultra-Durable and Splashproof (Bombproof Rubber Exterior-Black)
Bought this item for myself and my son, and it broke within a couple of weeks of him using it.  The point at which the USB plug goes into the unit somehow got loose and is now pushed into the unit on my sons speaker.  On my speaker, the front grill is loose.  I will try to return it and see how good the company's customer service is.