8-Position Monaural Jackbox without volume control; Strain-relief connectors ensure its cord won’t be pulled out, even in the roughest school conditions; Permanently attached cord with 1/4“ and 3.5mm plugs attaches to all media players; Individual volume control for personal preferences; Rubber pads underneath so it won’t “walk” or scratch desktop; Predrilled holes for permanent mounting Number of Listening Positions - 8 Cord Permanently attached, 5 foot with 1/4” and mini plugs Contact points Silver-plated for better connection and are moisture resistant to prevent corrosion Housing ABS plastic for durability and school safety Volume Control Not available on this model Warranty For school/business uses for 1 year from purchase date Safety Built for use in schools, churches, business and government facilities Dimensions 2” H X 4.25” L X 4.25” D