iSync Mktg. Inc. a manufacturer and developer of business style electronic devices and accessories and headquartered in Manhattan New York will launch its Croonos brand of Eco-Friendly emergency power devices and accessories at the 2015 NMSDC Conference & Business Oportunity Exchange October 18 - 21 San Diego, CA Convention. The Croonos brand will feature its EcoStak and EcoJoule Wireless devices and accessories uniquely designed to extend and restore energy to an array of iOS and Android USB configured mobile digital devices.