Devices with stereo speakers deliver sound that surrounds the user from left and right side, creating a richer sound and a better experience.
2.Has a passive radiator
vs No (79% don't have it)
A passive radiator looks like a normal driver (speaker) from the front, but on the backside all of its 'guts' are removed. Passive radiators allow woofers to produce deep tones that otherwise may not have been possible. They can have the same sonic output as larger speaker cabinets, but in a much smaller size.
3.Has a battery level indicator
vs No (71% don't have it)
An indicator shows you when the device has low battery.
4.Significantly more drivers
vs 2 (the average)
vs 8 (best: Logitech UE Boombox)
A speaker driver is an individual transducer that converts electrical energy to sound waves. More drivers may result in better sound quality.
5.No battery needed
vs No (73% don't have it)
This device works without batteries. It weighs less and you don't have to worry about recharging or replacing the battery.