It has volume/gain up and down buttons, but there's no blinking light to tell you when you're actually changing the gain. It'd also be nice if when you turned down the receiver to "mute" the red light would blink or something so you'd know it's not actually recording audio.
It might be my lack of knowledge with wireless microphone systems (as this is my first wireless system, so keep that in mind) but there were actually two times while I was recording the video I included with this review and the audio was coming in blaring loud. So I turned down the gain on the receiver... I actually unknowingly muted the receiver and then was missing the audio for the next few clips. (I was using a DSLR camera with this system when that happened too, just to note. It wasn't with a phone.)
This is really the main reason why I removed a star though. Mainly because I then had to take another half hour or so to re-record the clips that had no audio.
Since the whole "mute" thing happened I now check the audio after turning the volume all the way down, then I turn it "up" one click and take a test recording to be sure it's good. I usually have my camera mic sensitivity turned all the way down too and this still comes in loud, so I guess that's a good thing?
Like I said though, this is a very solid system, so I'll get into THE GOOD now:
Great range. In my testing, the wireless mic/transmitter (when clipped to my waist and using the lapel/lavalier mic) was actually able to reach 55 meters. So that's longer than they claim the range is.
Lightweight. I honestly didn't even notice when I had it clipped to my waist. It was so light I couldn't even feel it!
When watching different videos online, I've heard people say "I hate wearing the wireless mic, it's so heavy it pulls my pants down when I clip it onto my waist!" You definitely won't have that problem with these. This would be perfect if you're doing some type of sport while recording audio. (Skateboarding tutorials, bmx tutorials... etc). The small compact size and fact that these are so lightweight would be perfect.
Great battery life. I charged them up fully when I got them and was able to record the video I included with this review as well as mess around with them for at least 5 hours.
The 1 to 3 USB-C cable is awesome too! Thank goodness you can charge everything at once off the same cable.
And last but not least, the audio quality is definitely decent!
(Like I said, this is my first wireless microphone system, so I can only compare the audio quality to XLR or USB mics.)
The audio quality straight out of the camera when connected to this system (without any adjustments other than just changing the volume) is very decent.
(I'm sure someone with more knowledge would also be able to change the settings and get it to sound better than I could.) But comparing it to an XLR or even USB mic, it's definitely not as crisp or clear in my opinion.
Obviously, comparing USB/XLR mics vs. wireless is like comparing apples to oranges, so I know you can't expect them to be the same thing. Since my only other recording knowledge is with a few USB and XLR mics, that's really the only comparison I can make.
So OVERALL: Yes, I'd definitely recommend this system. Really as I stated in the title, there's just one little issue/annoyance from my use to note. (The gain thing) but for the price, it definitely seems like the benefits outweigh the negatives in my opinion.