Pros: It is not loud enough via Bluetooth but I discovered that plugging in the phone with the Aux cable produces some great results. Plenty of volume. Defeats the purpose of the Bluetooth part but it's good to know that the speaker is capable of producing sound at higher volume levels without distortion.

Cons: Bluetooth connections don't have enough volume. Tried with multiple devices.

Pros: Fairly decent sound

Cons: Very weak. My phone itself has twice the volume of this speaker. It's just not loud enough, not even when it's sitting right next to you. I'm very disappointed with it.

Pros: It's a small but pretty loud rechargeable speaker. It charges with a standard micro-USB adapter which most non-Apple phones and devices use to charge with so that's handy. It also comes with a nice carrying case too to keep it clean when moving it around. Bluetooth connected right away to my phone. Battery lasts for hours and can be powered with the charger should you run low on juice.

Cons: Even though it has a passive radiator acting as a "subwoofer", it really doesn't have any appreciable low end but that's to be expected of a speaker of this design. The BT handsfree phone is something of a novelty but it does function.

Other Thoughts: I got this for $48 on Newegg Flash which is a steal considering the competition is still selling it for $120 as of my review.