Metra Home Theater Group MHTG, a pioneer in HDMI cable technology, is a division of Metra Electronics, the world leader and the Installer’s Choice for vehicle installation kits and car audio accessories for more than 70 years. Headquartered in Florida, MHTG brands include Ethereal Home Theater, Helios and Spyclops Surveillance Systems . Metra’s strong investment into RD has led to cutting edge products that have, Home Theater, Surveillance Systems ...

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