 SAN JOSE, Calif.--BUSINESS WIRE--Summit Wireless Technologies, Inc. NASDAQ: WISA, a leading provider of immersive, wireless sound technology for intelligent devices and next-generation home entertainment systems and founding member of the WiSA Association, provided preliminary revenue for the fourth quarter ended December 31, 2020 and revenue guidance for the first quarter ending March 31, 2021. The record preliminary revenues of over 1.0 million for the fourth quarter of 2020 is testamen 