A new app called AmpMe promises to achieve the same effect, except instead of asking you to shell out for new hardware, it daisy-chains an unlimited number of smartphones so that they stream the same song in sync, combining each handset’s speaker into something.
The free app, available for iOS and Android. Everyone involved needs to have the app installed, and anyone joining in needs to request a passkey for the music party before receiving that unique audio code.The host can shut down the party at any time with the push of a button, whereas receivers can pause the music for, say, a phone call, and pick back up with the rest of the group, wherever they happen to be in the song.
Currently, this app works only with Soundcloud.But the team is working on with other streaming services as well.
App link: iTunes, Google Play