Picked on of these up about a week ago and wanted to give you my impressions: I have had a dozen calls and most participants think I am on my work Cisco VoIP conference speaker phone: minor echo, high clarity. Sound on my side is wonderful - slight bass and perfect voice quality. Beats the snot out of any in device speaker on calls. Charges via USB (no additional chargers). Resembles the speaker box Bosley had on his desk when Charlie called in "Hello Angeles!" NOT good for playing music! It's not really meant for that even though they may imply that - kinda flat lol! Great device, only $99 but you can find it cheaper if you look. Voice quality on both sides is better than most I have tried. A definite keeper.