gdgt

An impressive portable speaker system with audio that's great both for the unit’s size and for its $150 price tag. While the audio softens a bit when running from the battery, I’m quite pleased with how good the system sounds overall.

The bottom line: In the sea of affordable, forgettable iPod speakers, the Logitech S715i is a beacon for those who prefer their music to sound great.

Logitech's Rechargeable Speaker S715i may distort at high volumes, but at reasonable levels, it sounds better than most portable docks out there.

Despite its compact design, it offers punchy mid-bass, powerful sound and an 8-hours rechargeable battery that make it a good option for those who are looking for a good portable sound solution for indoors or outdoors.

It isn‘t the loudest- or biggest-sounding iPod dock about, but it's by far the smoothest, most dynamic and most detailed, delivering impressive punch and insight for such a small unit.

If you’re willing to accept its larger physical size and potential for encased iPhone 4 incompatibility, you’ll find that it delivers outstanding sound for its asking price, making great use of several different drivers to deliver superior sonic fidelity to its rivals.