I remember the first time I bought a wireless lav system. It was a lot of money, but I finally bit the bullet and bought my first wireless Sennheiser G2 system. There I was, $600 down, but as happy as a clam. At the time, you couldn’t get a (decent) wireless body-packs for less than $450. My eyes were always set on Sennheiser though. Fast-forward half a decade later, and we have a bunch of wireless options. The prices have been going down and good quality has become more affordable. At $200.00, the Rode Wireless GO is one of the cheapest, most discreet, featured pack wireless systems on the market.
Getting good quality audio is often the biggest challenge faced by DSLR & mirrorless video shooters. The microphones built into most cameras are notoriously bad. They hear all kinds of background noise and echo, they hiss, and pick up a lot of unwanted sound from the camera itself, like autofocus (or even manual focus adjustments).
The easiest solution, of course, is to use an external microphone. You can then plug this either straight into your camera or a separate portable field recorder. While there are many different types of microphone out there, sometimes a lavalier is your best choice. This is where there Saramonic UwMic9 dual wireless lav mic kit comes in.
Rode made a name for themselves as quality microphones suppliers and many sound guy swear by their mics (as do I). While they do make great microphones, one thing was always missing from their offering, a wireless system. The kind of transmitter that goes in the pocket (along with a lav mic) for the speaker and has a receiver unit where you actually record the audio. This can be the camera or an external recorder.