Review on Ultimate Ears Boom 2 Green Machine Wireless Mobile Bluetooth Speaker (Waterproof And Shockproof) (Renewed) by Greg Princeking

This speaker doesn't duplicate with UE Roll models. That was the main reason I bought the speaker, so I was very disappointed. The doubling feature used to work with Boom speakers, but UE disabled it with a firmware update, which is further disappointing. Called support to see if there was a workaround but they (several carriers) said it wasn't possible. One even admitted that this was a confusing and annoying move by UE and that he had heard this complaint from many other users.