I have used the Sennheiser EW-100 wireless mic system on a weekly basis for several years. It’s a great mic, but it comes at a plus $600 price tag! The Comica VM-100 is less than a third the price and I cannot hear a difference. I personally used this mic for a syndicated TV show that I produce and it worked flawlessly, right along side the Sennheiser that is 3x the price. It have many frequencies to choose from, so it you have several of these, that will not be an issue either.
I also make youtube videos and this is the perfect, relatively inexpensive, wireless mic for a serious youtuber. The construction seams to be a high quality plastic and would not be worried if it took a small drop. Overall, I’m happy with this VM-100 lav mic and recommend it to anyone looking for a wireless mic in this price range.