$OPTI announced that it has successfully implemented a series of OPTEC iWandä Promotional billboards across Los Angeles, California increasing the Company's exposure for OPTEC's leading UVC-LED Personal Protection product within a suite of UV-C sanitizing products that the Company currently offers including the UVC-Rovers, Touchless Temperature Safe Scanners, and the Hydroxyl Air Purifiers. https://finance.yahoo.com/news/optec-internat...00540.html