As far as backpacks go, this is one of the most innovative on the market right now. Made by TRAKK, the SHELL backpack comes with a 20W speaker integrated into it, as well as being waterproof and it comes with an in-built 5200mAh power bank.
You can connect and play music through the backpack using either an AUX cable, an SD card, or Bluetooth 4.0 which can connect from up to 65 feet away.
If you're interested in one, they're available on Amazon and currently have 35% off, so definitely worth checking out.
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