The completely wireless Speaker Backpack consists of a lightweight, impact-resistant ABS polymer hardshell and high performing audio components, including anodized aluminium hardware.
It weighs 5.8 kg (12.8 lbs) and measures 43cm x 34cm x 22cm (17" x 13.4" x 8.7"), so it's quite easy to carry and also comfortable, as it comes with a neat strap and back padding design. Inside, there is a 22.2V 4400mAh Lithium ion battery, giving power to the music for up to 15 hours.
There is an easily accesible control panel, which is behind the BeatBringer padding (secured with neodynium magnets). It is simply switched on by turning the selector knob to Aux or Bluetooth input. If your smartphone's battery needs some juice, you can recharge it via backpack's USB connector.
What really stands out, is the audio level of 110 dB, which much higher than what other portable speakers can offer!
If you want one, head over to the project's Kickstarter page and secure your cool portable speaker at a cheaper price for early birds! Later, it will retail at $670.