Polyvox is a Brazilian electronics company founded in 1967 that achieved great success in the 70s and 80s with the audio market. In 1979, the company became a subsidiary of Gradiente after being bought by the company. They were responsible for bringing the Atari 2600 to the country in 1983 before the brand was phased out at the beginning of the 90s.

In 2017, the brand was revived for releasing products in the audio market.