Portable audio accessories worth a listen Cnet rating: 4 stars out of 5 The Sonos is a stylish and exceptionally well-made wireless speaker, with support for most key services and reliable wireless streaming. Sound quality is good considering the size, and gets even better when paired with a second for true stereo playback. Unlike Bluetooth speakers, the Sonos system can’t stream from every app on your phone or tablet — so there’s no support for iTunes Radio, for instance. The lack of a built-in battery limits room-to-room mobility. The bottom line: Extra-comfortable design; clearer, more dynamic sound; highly effective noise-canceling circuitry that’s been slightly improved; new folding design allows the headphones to fit in a smaller carrying case; if the battery dies, the music doesn’t go with it; 21- to 30-day risk-free home trial. The bottom line: The QuietComfort 25 model takes Bose’s already stellar noise-canceling headphones to new heights. The V-Moda is a comfortable set of on-ear headphones that has a sturdy design and folds up into a small carrying carry case (included). The bottom line: The larger Megaboom improves on the already impressive sound quality of the Boom, with even louder sound and fuller bass. The bad: A bit pricey; no carrying case included. The bottom line: Cnet staff members contributing to this report: executive editor David Carnoy, freelancer Steve Guttenberg, senior associate editor Matthew Moskovciak, associate editor Justin Yu and senior editor Laura K.