The Sony XB40 has many technological improvements that make this portable Bluetooth speaker system superior to other products in this crowded marketplace.

After researching amazon for all the Bluetooth speakers available, I purchased the srs-xb40

The XB40 Portable, Wireless, Bluetooth Speaker from Sony raises the bar for portable speakers

Really nice bluetooth speaker

Pros: After short break in period sound became best I've heard in portable Bluetooth speakersLights add some more energy to the musicKiller battery life to last a long timeCons

When the battery is low (reviewers said 50% or so) the speaker's volume is weaker than $30 portable Bluetooth speakers

Bluetooth issues since the first

I love these Bluetooth

Fantastic Bluetooth speaker, 5 stars

In conclusion, amongst our crew of outdoor adventurers the Sony XB40 portable Bluetooth speaker is the best such system we have ever seen or used.

Sounds pretty good compared to other smaller Bluetooth device like a Sharkk (which I also have)

looses bluetooth signal constantly

Bluetooth feature and battery work fine

I love that it just turns on and off without any annoying loud announcements like "bluetooth on/power on" (I hate when cheap bluetooth speakers have to announce to the whole world when you just simply want it on)-

Overall I'd definitely recommend this speaker especially if you're thinking about getting a speaker like the jbl charge 3 which is $120, this sony will sh!t all over that thing.

Overall I'd definitely recommend this speaker especially if you're thinking about getting a speaker like the jbl charge 3 which is $120, this sony will sh!t all over that thing.