If this boombox-backpack concept ever makes it to production, the designer deserves to be shot. And if people actually wear them while cranked up full-blast, they probably will be.
Speakers built into messenger bags,, backpacks, and even bowling bags are nothing new, but usually they're designed with at least a modicum of human decency in mind. But the "Reppo II" backpack pulls out all the stops, with a pair of full-range speakers and an amplifier just to make sure everyone hears you whether they want to or not. Maybe those stun phones we mentioned earlier aren't such a bad idea after all.