WHAT DOES BLUETOOTH SPEAKER WITH MICROPHONE SM MEAN?

�?It's extremely heavy. The Hyperboom weighs in at thirteen lbs, making it the heaviest speaker within the list.There’s easy controlled bass on offer below, and lots of it. The mids are completely shaped, supplying terrific definition to voices and guitars. The highs are just as impressive, offering cymbals perfect clash. There’s no Spatial A