UBELIEVABLE ?

This is footage from a Charlie Chaplin film 'The Circus" from 1928. It shows a lady in what appears to be talking to someone on a handheld device such as a cell phone. Look closely she is talking to someone. But is she a time traveler??? Some people actually thinks so. But of course not. Cell phones or portable radios did not exist then and also if she is talking on a cell phones she would need those cellphone towers which did not exist in 1928. It's not a walkie talkie either because those were not invented until 1937 and even then they required a bulky backpack transceiver powered by vacuum tubes. To be honest no one really knows what she has. I have an idea on what it could be keeping mind the time period Makes you wonder though hmmmmmmm????