Guitarists probably have an effects pedal; a reverb, delay, overdrive, flanger, you name it. And if they don't play with a battery pack, they'll have an adapter. Why have an adapter anyway? We are in a USB era where there are even coffee makers that run on USB. Really; a coffee maker on USB - very handy for in the car! So, what does 't brand MyVolts come up with? Right: an adapter cable from USB to barrel: the Ripcord. And with it, you can thus power a guitar pedal from a USB power source. Not just those pedals, actually any device with a barrel connector that matches the size,voltage and polarity associated with the respective Ripcord. So yes... a guitar pedal in the car or just attached to your computer. 'Tis amusing, you just have to think of it!
Guitars > Guitar Effects > Guitar Effects Accessories > Guitar Effects Power Cables