These two pickups are good qualities
I use version to the classic field recording and recording material in the studio
value for money especially relevant for small-sized pickups
I use the adapter with XLR soundman (and marrantz pmd 661) to power the microphones because it does not work with a power supply 48 v but plug in power "
Finally I rarely use binaural mode (in the ears) but more on spits near the devices to record the creation of sound space is then very interesting
Caution to the wind outside they are very sensitive.
Minimum: The signal to noise ratio is low, so breath
We must find the right setup with preamp and all is well
They have largely found their place in my studio.