I bought a JBL Bluetooth boombox type thing (I don't know what you call what used to be a boombox...portable audio...thing?) and was struggling to come up with how to hang it on my bike. Searched for a holder or bracket or something, found one, and thought, "Wait a minute...that looks like a water bottle cage." Sure enough, it drops right into a regular old water bottle cage. So, I will not be spending seventeen more dollars to hang it on a #bike
