The JamStack is made up of three pieces of equipment: Speaker system, smartphone mount, and patch cables. All of which are built to last. Weighing under 2lbs, the JamStack can fit easily into most guitar or travel cases and lasts for over 8 hours. The JamStack also acts as a fully functional portable Bluetooth speaker. [Via.](http://business.financialpost.com/entrepreneur/fp-startups/jamstack-creator-finally-hits-the-right-chords-with-his-smartphone-guitar-amp)