New USB Speakers Store Unused Power to Augment Audio from Portable Amps

That's a Kool Idea. Very smart. Now why not implement it on other similar devices. My PC for example.

so these will drain ur battery?

I'd assume the drain is similar to any external HDD or that Zune your're charging.

Hmmm...I've had a 1 farad capacitor in my car audio system since '92. The only surprise is how long it took for the idea catch on elsewhere.

They shouldn't be any more of a drain than anything else on USB, using 5.25 volts pretty much constantly.

Wish that these articles would get the tech right. It's not the voltage, it's the power -- volts x amps. USB is limited in voltage and current. Continually drawing the max available power and using it in bursts is fairly clever, but again, it's the power. The aquadag voltage on the good old CRT was in the neighborhood of 50KV, but it had almost no current capability, so you would generally survive the shock -- it's the power.

@manhunter098 volts =/= power volts * amps = power power * time = energy. Energy is all we care about. You can run something off 5.25 volts for years and never consume a measurable amount of energy or you could run your house off 5.25 volts and consume roughly the same amount of energy it currently consumes. I wish people would have payed more attention to high school physics.

There is such a thing as a dc to dc voltage converter that can change that 5.25 to 32 volts or 320 volts. These guys idea would work better and would have a reduced cost if they used a battery and a smaller supercapacitor. There is already people making powered speakers with a usb charging battery look up
Manhattan mini USB speakers