This could either be the coolest app of the month–or one of the most annoying. AmpMe allows you to link/sync together a whole bunch of smartphones and Bluetooth speakers to form one giant sound system, all playing the same thing.
It works like this. First, people need to connect a Bluetooth speaker to their mobile phone and then install the AmpMe app. It automatically syncs all the AmpMe connected phones and allows every speaker and phone to play the same music from YouTube, Soundcloud or the library of any of the phones. And there’s no limit to the number of phones/speakers that can join any given collective.
There’s also an offline mode where a host phone can connect to as many app-enabled phones that want to join in.
What’s also very cool is AmpMe’s predictive technology that syncs everything super-tightly so that there’s no latency between any of the phones or speakers. Everything blares the same thing in perfect time.
As the site says, you can “turn your friends into a portable sound system.” Here’s a demonstration.