MOGICS MS1-B Wireless & Water Resistant Speaker

Smallest bluetooth speaker I've seen or used. I have other compact, low-cost bluetooth speakers including the Oontz Angle 3, and this, incredibly, has better sound. It doesn't provide a lot of low end, of course, but for the size it works really well in a small room or at a picnic table.And it fits inside my Bose NC headphone case.