DEI Holdings, Inc. is a designer and marketer in North America of premium home theater loudspeakers (sold under the Polk Audio and Definitive Technology brand names), and consumer-branded vehicle security and remote start systems (sold under the Viper, Clifford, Python, Autostart, and other brand names). The Company is also a supplier of mobile audio sold principally under both the Polk Audio and Orion brand names. The Company markets its portfolio of products through many channels including national retailers and specialty chains throughout North America and worldwide and directly to end consumers. DEI Holdings, Inc. has operations in California, Maryland, Canada, Europe, and Asia.