This is the best/cheapest solution for a dual wireless lav mic setup with a camera. I believe this is the 5th mic from Comica that I have reviewed and they just keep getting better. With this setup, you can mount the receiver on top of your camera, plug the output of the receiver into your camera and send two signals, with two separate transmitters to the receiver at the same time.
This is an amazingly simply and effective solution to an interview setup or YouTube video. The sound quality is clear, no dropouts, and sounds professional. I am excited to start using this mic setup for more of my YouTube videos. I highly recommend the Comica CVM-WM100 Plus duel wireless mic.