The signal-to-noise and frequency response numbers are the same as the Flip, but the sound is simply not as rich and full. What the Micro Wireless can do that the Flip can't is daisy chain – you can connect together (with cables) multiple Micro Wireless speakers to add to the sound. We didn't have the opportunity to see just how this works and if two Micro Wireless devices together sound more similar to a Flip, but it's an interesting question.
The Micro Wireless, it must be stated, does have one other problem. Inexplicably, it doesn't come with an AC adapter. It does come with a cord that plugs into a USB port—or a USB charger if you have a few hundred extra from your iDevices lying around—but it seems wrong for any device requiring a charge (even if Amazon does it with their Kindles) to not have an AC adapter included.
There are, as you may be aware, other ways of getting music throughout your house wirelessly (Sonos), but all the ones I've found are more costly than a sub-$100 Bluetooth speaker. Bluetooth speakers can't be daisy-chained via Bluetooth meaning I only get one wireless speaker pumping out tunes at a time, but the speakers we're talking about here are small and far superior to the one on an iPhone/iPad. Plus, maybe the next iteration of Bluetooth will allow my computer to run to multiple speakers at once (a guy can dream can't he). For now, I'm thrilled with the Flip and pleased with the Micro Wireless, and that's enough.