Meet the BeatBringer: a speaker backpack with Bluetooth that lets you enjoy your music everywhere you go. It has an impact resistant shell, powerful amplifier, heavy bass, and long battery life. You get a simple control panel to interact with the speaker system.
This speaker system supports NFC and Bluetooth streaming. It has 6″ neodymium woofers, 2 x 25mm tweeters, and a 4400 mAh battery. It can also charge your smartphone. More information is available on Kickstarter.