I recently purchased a Jambox because I was looking for a small wireless speaker that I could just throw in a bag and take wherever. While the size of the Jambox was nice, I always felt that it lacked in sound quality and felt the max volume was much too quiet. Thankfully Bose introduced this product while I was still in the return period with the Jambox, so I returned the Jambox and payed the extra in order to get the Soundlink. I was not completely sure what to expect from the Soundlink. I have one of the Sounddock speakers, and the sound from that device is amazing, so I was not expecting it to sound as good due to the smaller size, but just wanted something that surpassed the Jambox in volume and sound quality.
When I got the Soundlink home and tried it out, I was completely surprised. This little thing sounds amazing! As some other reviewers said, this really does make the Jambox sound like a toy in comparison. It really is quite amazing that something this small and portable produces audio that sounds this good. It is significantly larger than the Jambox, but its size still makes it very easy to take around in a bag. If you are looking for a portable, wireless, battery-powered speaker, you will not find a better one than the Soundlink Mobile speaker from Bose.