Califone Kids 4 Position Listening and Learning Center, Includes 4 Kids Headphones and Jackbox, Blue Ideal for teachers and for situation requiring portability and quality sound. Includes: 4 Listening First TM blue kids' headphones Includes a blue mini stereo Jackbox with volume control. Connects to media players. PC and Apple compatible. Ideal and designed for kids and young students, even preschoolers.