Grandmax, The Maker of The Original Tweakers Speakers

Award Winning Innovation for Portable SpeakersAs a winner of Innovation at CES 2009, Grandmax is a pioneer and leading manufacturer of portable audio products such as wireless Bluetooth speakers and retractable charge cables.

With our products being sold in many countries worldwide, we strive to improve our products based on customer feedback and upcoming new technology so that we can create better experiences for our customers.


Contact Us:
Grandmax /Y.C. Cable East Inc.
240 Circle Drive North
Piscataway, NJ 08854
U.S.A.
Email: sales@grandmax.com
732-868-0800