Hamilton LCP-ISD6 iDock Wireless Listening Center w/ Six Headsets Contains: - (1) ISD-P2- iSpeaker Dock, (6) W901-Multi - Deluxe Wireless Headphones, (1) W900-Multi - Wireless Transmitter, (1) LCP3175 - Carry Case , (1) W980 - 12V AC Power Adapter (1) W990 - 6-way Charging Cable OutPut: - Composite video output InPut: - Audio line input On/Of: - Video output on/off switch Volume: - Digital volume control