So, I was interested in purchasing a wireless transmitter / receiver to use with my own microphones.
This Pixel set seems to be a good choice, at least in my initial testing. I did stumble when trying to figure out the best settings for the output of the receiver going into my camera. I think around 6-8 on the output level of the receiver seems to be about the best setting for my Canon 6D Mark II. If I go too much higher I feel that the sound starts to get a little distorted on the receiving end. Your mileage may vary and you may need to perform a little trial and error to get the right settings.
All in all I think this is a good choice for me. I didn't want to purchase a set that cost 2-3X more, when really all I needed was basic functionality that this unit seems to provide.
Relatively inexpensive considering other options
Multiple channels, reduces chance of interference
Option to use with XLR and Smartphones (included cables)
Lavalier and Windmuff are included
Belt clips, and cold/hot shoe mounts are great
Love the little pro case, handy way to store the unit
I'm not totally sold on the quality of the included lavalier. It works ok, but doesn't sound as good as some of my other lavalier microphones. The good thing that it is a basic starter - but you may want to upgrade the lav if you are looking for more dynamic range and response.
I've uploaded a video where I look at the product, do a few tests and give my thoughts and opinions. Hope it helps!