Very light but not impossible.
Has been done by Hohner Imperial models and by Koch in Germany.
The AKKO Lescha children model is adverted on the official Russian website as being 3,2 kg. It has 34 notes 1 voice. The 70 basses are 2 voices.
The prototypes for stand up comedian Gennady Vetrov are smaller in size than the Lesha model. A while ago I posted links to the YT videos (the yellow and blue mini bayans, nicknamed in Russian as bayan mikro)
The blue one was 2 voiced tremolo tuning, an ideal busker instrument.
What better advert or propaganda for accordions as street musicians at festive events.