Logitech S-150 USB Digital Speakers or equal
for HP Notebook

USB speakers require no external power source, so they're ideal for netbooks and laptops
USB connectivity delivers digital audio and power so your music will sound great wherever you are
Built-in controls so you can quickly and easily adjust the volume or mute the sound
Satellite base is designed for greater stability on your desktop
Total RMS power: 1.2-Watts RMS (0.6 watts per satellite); Frequency response: 90Hz-20kHz