I had tried a 2.4G system before when they first came out some 5 or 6 years ago and found it unusable due to a latency delay and I ended up binning it, so I looked forward to seeing how good these were.
It arrived next day and comes in its own case with all the leads you’ll need, a plugin microphone and a furry wind-cover. This system is tiny and lightweight, turning both transmitter and receiver on together allowed them to ‘pair’, there are internal rechargeable batteries with a stated 5 hour run time and they showed fully charged. In the event of battery failure ‘on location’ it should be possible to run them from a 5v USB ‘power-pack’.
Plugging in to my JVC HM170 and using headphones, I set the record levels, first I tried the built in mic and then the supplied plug in microphone, I loaded the clips into DaVinci Resolve, there was a slight background noise and it definitely wasn’t Sennheiser quality, however I didn’t see any latency issues.
After some camera audio menu setting adjustments and adjustments to the transmitter and receiver audio levels I did get a reasonably clean sound with virtually no noise. Where I did notice very minor noise I was able to clean it up in Resolve with a noise reduction filter and a little EQ, overall I managed a very useable audio soundtrack.
For most applications, this system would be perfectly adequate, you might need to do some tests to get the best sound from them or, be prepared to do a little bit of a ‘clean up’ in your editing software if you’re super critical, but for the price I’ll certainly be making use of them.