A normal iPod shuffle doesn’t have the option to charge (via USB on the computer) and listen to music at the same time, but if you modify it (cut and solder a few parts) a bit after reading the How-To by David Lin, it will work like a charm.

Working mode:

When the Shuffle is plugged into a regular USB port, all four wires are transferring something. The green and white wires (the ones we didn’t use) transfer data, leaving the red and black to charge it. A regular USB port outputs 5 volts of electricity, and lucky for us, so do the red and black wires of a molex connector.

[Source: I-Hacked]

ipod, charger, shuffle