These USB speakers from B-Flex plug right into the USB port of your laptop.  The great part about them is that the USB connection gives them both power and sound, so you won't need extra batteries or a power outlet to make them work.  They deliver clear sound with dual 1-watt digital amps and 2 high output.  The flexable arm also lets you adjust the speakers to any position, so you can set it to work with the setup of your workspace or plug them into a rear USB, but still have the speakers bent around and pointing towards you. (read the entire Pink Laptop Diva review...)