The Califone JB310 Jackbox has ten positions featuring silver-plated contact points for better connection and moisture resistance. Made of rugged plastic, the jackbox has skid-resistant pads on the bottom and two pre-drilled holes if permanent attachment is needed. Each position has individual volume control and 3.5mm jack. The permanently attached cord is 6-foot with 3.5mm stereo and 1/4 inch plugs for connecting to audio source. Includes a 3.5mm input allowing it to daisy chain to another jackbox. Jackbox weighs 12 ounces and measures 2 inch H x 4.25 inch L x 4.25 inch D. Comes in Beige. 1 year warranty with school use.