- distortion effects
- overdrive and boost effects
AMUMU is a Chinese guitar accessories brand name. It has been around since 2017 and was registered in the US in 2020 by Cuijuan Ding (Eaglevox Corporation) of Guandong, China - but currently has an address in Hong Kong. The word AMUMU doesn't mean anything!
Source: AMUMU website (27 April 2022)
Source: USPTO Trademark Search