The SL1004 from AmpliVox Sound Systems is a compact headphone jack box that allows up to 6 users to connect to a single audio source. The box has a 1/4" stereo plug for connecting to a boom box, receiver, or other audio device. It also has 6 stereo headphone jacks, each with an independent volume control, allowing listeners to set their own volume without affecting others.
6 Stastion Jackbox
Individual volume controls
6 foot stereo or monaural cord connects to boombox