Volto was modeled on Elektro, a robot built by Westinghouse Electric for exhibition at the 1939 World's Fair.
In her one line - a reply of "Yes, John" to her husband - Julia Laughlin, Froggy's mother (played by Margaret Bert, obviously over-dubbed by a male actor), reveals that she has a froggy voice just like her son. That gag is not used in Radio Bugs (1944), where Froggy's mother (a different actress, uncredited) appears again, knitting, and has a pleasant, typically female voice.
For some reason, all the kids pronounce "robot" like "rowboat."
This film is the 200th of 220 "Our Gang" shorts released between 1922 and 1944 and the 32nd one produced at MGM.