Pros:
● Very easy to use.
● No batteries required (powered by lightning connector).
● Records with 24-bits (48,000 Hz sampling rate).
● Can use as earphones.
● Optional active noise cancelling or situational awareness
Cons:
● In one of two purchased units, the left microphone was 2 dB more sensitive than the right (the second is much better).
● The very first unit I purchase and quickly returned had a huge phase shift at low frequencies (< ~200 Hz).
● Unclear what sort of processing is happening while recording. Of course, this also makes the microphone easy to use.