(185)mp4: Qq

It is highly likely that this term refers to a specific, localized file, such as:

did you see this phrase (e.g., in a chat app, file manager, video converter)? QQ (185)MP4

A generated by a specific application, device, or QQ messenger (a popular Chinese messaging app). A renamed file or part of a digital archive. It is highly likely that this term refers

Based on a search, there is no widely recognized or standardized technical feature, software, or file format named "QQ (185)MP4". in a chat app

What is the (e.g., is it a filename you are trying to open)? Knowing this will help me explain exactly what it does!