Useful Expansion

As moviemakers I have ever used a wired auxiliary microphone whose cord was always kind but too short to even a few feet away to stand further away from the camera, so I thought the idea was great to have a cordless microphone.
The microphone has several settings, so that you previously one must have a little deal with it, you can choose namely whether to also want to record to the 5.1 audio of the camera microphone sound from the wireless microphone or even just the sound from the wireless microphone.
In practice, this will be considered carefully: If you are too close to the camera and uses integrated both microphones, there are ugly duplication effects (because the sound to the two microphones of different lengths is traveling). It was not until about 3 meters distance it works then as intended with the integrated sound, that is, the 5.1-in microphone of the camera takes the ambient noise, and the wireless microphone then takes the voice (I'm assuming that the micro in to be used 95% of cases so).
Otherwise, you just have to "only" take the cordless microphone to record. This may still have advantages since 5.1 always like rushing anything.

Negative points: The Micro will only work with Sony video cameras that have the appropriate accessory shoe. The price is very high.