Altec Lansing 251 Speaker Set

Quote:

"Viewing from the left-to-right, we can see a headphone jack (allowing private listening through a set of headphones), three volume control knobs (for the center speaker, surround and master volume) and finally an on/off switch with a green LED that illuminates to indicate power state (something that a modder may wish to convert to a blue LED...)"

More info on these speakers, availible here.