OVERVIEW:
This is the 7RYMS iRAY DW30, a dual-wireless system that, similar to the Rode and DJI, is capable of on-board recording (on the transmitter). At the time it was introduced, it was one of the few competitors to the previously mentioned Rode and DJI offerings, but now I've noticed a few others being added to the list of wireless systems capable of on-board recording. As you might already know, this system is more than just a wireless audio system; each transmitter also has onboard recording. This is the feature I'm focusing on here, and so there are a number of quirks to be aware of when it comes to using this system as an audio recorder. The first is that I don't see a way to change the REC. LEVEL on the transmitter/recorder. There is a way to change the OUTPUT LEVEL on the receiver (RX) if you are using wireless transmission, but no way to change the REC. LEVEL. of the on-board recording. What this might mean is that, if this thing isn't a 32-bit float recorder (and I'll talk about why I say IF in a second) it would seem like it's kind of limited in terms of being able to make sure the audio doesn't ""clip"". However, as I started testing, I realized a couple of things: 1. The record level is pretty low (so it has lots of headroom) and 2. The level indicator on the display of each transmitter says the level is higher than it really is (based on looking at the file in an audio editor). This is good, because I'm less concerned that the recording (on the transmitter) will clip, even though it doesn't seem to be adjustable. The last thing I'll say is that when I amplify the level using an audio editor such as Audacity, I'm super surprised at how clean the audio sounds...it's almost like working with a 32-bit float file on my Zoom F2 (but I haven't pushed it very far in testing yet, so I'll update this after more testing).

MAIN POINTS:
PART 1: IS IT PORTABLE?
PART 2: IS IT AFFORDABLE?
PART 3: IS IT COMMON?
PART 4: HOW’S THE QUALITY?
PART 5: IS IT EASY TO USE?
PART 6: NEEDS ADD-ONS?
PART 7: WHERE DO I BUY?

PART 1: IS IT PORTABLE?
The two transmitters and the receiver are really small and light and can easily fit in a pocket. The storage/charging case that comes with it is a little bit more difficult to find a place to store though. This is why I say it's too big for a pocket, but if you don't think you need to protect these little guys when you pack, you could say it's pocketable.

PART 2: IS IT AFFORDABLE?
When introduced, it was the least-expensive option of this kind (of wireless systems that have on-board recording) but now there are a few others that are less expensive, but the price war may still be on, so we'll have to wait and see where things settle down to. So far, these are priced near the middle of the range.

PART 3: IS IT COMMON?
These were available new on Amazon and on Ebay, but they were only available new when I tested it...either because people like them enough to not sell, or maybe they're just not popular enough for me to find any on the used market?

PART 4: HOW’S THE QUALITY?
There were a few times during my tests where you can hear a strange, liquid-ish RF interference sound (the sound of squishing something with a small amount of liquid in it). It's not noticeable when you're talking but shows up when there's a quiet spot in the recording. I think it has something to do with the fact that it's a wireless TRANSMITTER, and it constantly looks for the RECEIVER while it's on. The second thing that is really interesting about this device, is that when you open the file that's created with this microphone/audio recorder combination (in an audio editing application) the level starts out really, REALLY low. However, it's kind of amazing how much you can boost the level in post and not introduce a lot of self-noise (I talk more about this in the general description of this transmitter/audio recorder below). I was baffled regarding how clean the audio sounds after boosting it in post-production...and then I remembered I had read it is applying some kind of noise reduction WHILE RECORDING! I looked up the specifications, and they call it ""intelligent denoise"". So, while there is no way to change the REC. LEVEL while using the on-board recording (to the internal memory of the transmitter) I am really liking how the audio sounds after amplifying the audio it records (which starts out really low).

PART 5: IS IT EASY TO USE?
If you just use this as a LAV mic (with the included plug-in LAV or with the built-in mic) and with internal recording, it’s pretty easy to use (just turn it on, press record). Using it as a wireless mic is a little more difficult, because you need to set both the CAMERA audio level AND the wireless receiver level, to get things to work. I know this is normal for using wireless devices, but in this new world of 32-bit float, it’s not as easy (comparatively). As a side note, this device isn’t really clean in terms of RFI, so if you’re wanting to use it with a SHOTGUN mic, I haven’t found any of those that aren’t (negativity) affected by the RFI (see the individual, mic-specific tests for more info).

PART 6: NEEDS ADD-ONS?

PART 7: WHERE DO I BUY?

CONCLUSION:
I now only recommend wireless systems that offer on-board recording (like this one) because of the unreliable nature of some frequencies. This is one of the few wireless systems that does this, and yet it may be one of the least talked about (but it's becoming popular). I'm still testing, but so far it's working pretty well (and it's a lot less expensive than the DJI and Rode options.)