http://www.readx.com/ http://www.readx.com/contact.us.aspx http://www.readx.com/products.aspx http://www.readx.com/reader.10000.aspx http://www.readx.com/reader.20000.aspx http://www.readx.com/reader.30000.aspx http://www.readx.com/ancillary.transponders.aspx