While you can get even cheaper Bluetooth models, the SRS-X11 is one of the better-sounding micro wireless speakers and offers 12 hours of battery life.
The Sony SRS-X33 makes a strong case for being a less expensive alternative to the Bose SoundLink Mini II.
While it doesn't play as loud when it's on battery power, the Sony SRS-X5 holds its own against the top Bluetooth speakers in its size and price class.
While the SRS-X7 can't beat the performance of competitors like the Bose SoundLink III, it's a nice portable wireless speaker that offers the flexibility of both Bluetooth and Wi-Fi connectivity.
Sony announced three new wireless speakers at CES 2014, touting support for just about every wireless feature there is.
With comparably good sound for its size and the addition of speakerphone features, the Sony SRS-X3 mini Bluetooth speaker measures up well against the pricier Bose SoundLink Mini.
Joining the ranks of cylindrical portable Bluetooth speakers, the water-resistant Sony SRS-BTS50 hits stores this month for $130.
A worthy peer to speakers by Bose and Jawbone, the Sony SRS-BTX500 is one of the best premium portable Bluetooth speakers you can buy.
The Sony SRS-BTV5 wireless Bluetooth speaker boasts speakerphone and (iffy) NFC capabilities, but it doesn't beat the competition for the price.
It's not cheap at $70, but the SRS-X11 is one of the better sounding micro wireless speakers.