SYNCO G2(A2) 2.4GHz デジタルコンデンサーワイヤレスマイク

I'm a bit of a novice with lavalier mics, so my review isn't a comparison to other items available on the market, just some reactions from a relative beginner.Overall, I've really enjoyed using this microphone system so far; it's intuitive, works as expected, and the sound quality is excellent.I spent a few minutes with the included instructions and was able to work out pretty quickly how to operate all of the controls. There are only a few buttons, and they're all pretty clear and easy to learn. Display screens are bright, clear, and intuitive. The transmitters and receiver boxes are compact and lightweight. All needed cables are included - the only adapter I needed was to connect to an iPhone, which is understandably not part of the included package (and which I already owned from working with other external (non-lavalier) mics).The transmitters pair with the receiver automatically - I understand there's an option for manual pairing if necessary, but I didn't need to mess around with it. The devices arrived partially charged, and I charged them to full before using- which took maybe 30 minutes, tops. Charging is easy with the 3-in-1 USB cable and the batteries seem to hold their charge well while in use. The batteries do drain somewhat over time when turned off (went from roughly 70% down to 20% over a couple of weeks), so they should be freshly charged shortly before use.Recording sound on an iPhone worked well (using the adapter, which as I mentioned above is not included). I tried recording with the built-in mics on the transmitter boxes, as well as the external mics, and both captured great sound quality. I was surprised how well the built-in mics worked, though voices sounded just a tiny bit clearer/crisper when using the external mics. I experimented with different gain levels on the two transmitters; the settings are easy to change and read on the receiver box.I tried using the "low cut" feature, recording close to a window AC unit running full blast on a 90*F day, and I admittedly didn't notice much difference in terms of noise-canceling; this was a pretty limited test with very loud fan noise though, others may notice more of a difference with other lower-frequency or more subtle sounds. I don't intend to make a habit of recording sound right next to loud fan noises anyway, so I'm not bothered about it.I'm very happy with my new lavalier microphone system, and looking forward to using it more!