Bose Corporation is a privately held American corporation, based in Framingham, Massachusetts, that designs, develops and sells audio equipment. Founded in 1964 by Amar Bose, the company sells its products throughout the world. According to the company annual report in the 2017 financial year, Bose received revenue of US$3.8 billion and employed more than 8,000 people. Bose is best known for its home audio systems and speakers, noise cancelling headphones, professional audio systems and automobile sound systems. The company has also conducted research into suspension technologies for cars and heavy-duty trucks and into the subject of cold fusion. Bose has a reputation for being particularly protective of its patents, trademarks, and brands.