The key to listening centers and group sound fields is the jackbox, the distribution point to the headphones.Califone gives more attention to this mini fourposition stereo unit with silverplated contact points for a solid connection and moisture resistance, individual volume controls, 3.5mm plugs and rugged ABS plastic housing for durability.Weight 6 oz. 1.Four 3.5mm listening positions for most listening groups 2.Rugged ABS plastic casing for durability and school safety 3.Silverplated contacts prevent "crackling" sound heard when connecting with other jackboxes 4.Customized preferences with individual volume control 5.Skidresistant pads at each corner won't mar or scrape surface 6.3.5mm stereo plug with detachable 6' patch cord (not shown) connects with media players Ideal for Itinerant Teachers and situations requiring portable equipment with quality sound.Can be used for Listening Centers, ELD / ELL / Title 3 / Special Education applications as well as Language Labs and call center training.

The key to listening centers is the jackbox, the distribution point to the headphones.Califone gives more attention to this eightposition jackbox with features such as silverplated contact points for a solid connection and moisture resistance, individual volume controls, and rugged ABS plastic housing for durability.Ideal for use in Listening Centers, ELD/ELL and Special Education applications, Language Labs and literacy groups. Eight learning positions, each with a 1/4" jack and individual volume control Rugged ABS plastic casing for durability and school safety Permanently attached 6' cord with 1/4" and 3.5mm plugs connects with media players Silverplated contacts prevent "crackling" sound heard with other jackboxes when connecting Skidresistant pads at each corner won't mar or scrape surface Two predrilled holes to permanently affix to a surface