What is missing is a bit of upper mid-range, which leaves the BackFloat's renderings lacking a touch in definition. Stereo separation is mild, at best; a problem I've heard in every one-piece speaker system. The BackFloat isn't an audiophile speaker, but it's certainly up to its intended purpose of blaring tunes in the pool or shower for a good long time: Monster claims 7 hours of battery life; I got 6 to 8 hours in my low-volume testing.
A pool-worthy plaything
No one passionate about music will use the SuperStar BackFloat as a reference speaker, or even as their primary indoor audio system. But it's great for its niche--if you can get over its price tag, that is.
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