combination microphone造句

Just by looking at this belt, one would not necessarily be able to tell that this implement is a combination microphone, distortion-pedal, and noise generator.
:Now, as to why you get worse sound quality when using a combination microphone / speaker, I don't know the details, but you do need larger speakers to get good bass, while this isn't as much a factor for microphones.
It's difficult to find combination microphone in a sentence. 用combination microphone造句挺难的