A system for general data dissemination and, more particularly, to disseminating pictures and sounds relating to real estate properties, using a secure radio frequency data link communicating with a PC, laptop, PDA, or cell phone. A sealed, high-security data dissemination device, using standard-availability data-retrieval systems and standard data protocol, enhancing a real estate professional's ability to communicate features of a home without the prospective clients having to stop and physically view the property.