BMO

Be M0re, best known as BMO for short, is a major character of Cartoon Network's Adventure Time franchise. They are a prototype video game system who is the best friend of Finn and Jake. it is revealed they were created by Moeseph Giovanni, the founder of MO Co.
They are voiced by Niki Yang, who also voices Lady Rainicorn in the same series and Candy Chiu in the Gravity Falls series.