This mic can be plugged into a computer, smartphone, or anything with a 3.5 mm TRRS compatible jack. The sound is very clear, although some static may occur if the person wearing the mic has a lot of movement.
This mic offers two lavalier mics that may be clipped onto the lapels of the individuals being recorded.
Another good option for one on ones or small groups is the
Zoom H1n Handy Recorder (Amazon, $119.99). It's a little more expensive, but this stereo microphone is simple to use - just set it on a table or floor, point toward the target area, and turn it on and in record mode. It has great sound!
The first time I used the Zoom recorder, I worried about being able to match the audio to the video I shot. I've mentioned using Corel VideoStudio to edit video and this one-time purchase software offers a few basic effects for audio. I also use subscription-based Adobe Premiere Pro which offers a more robust video editing experience and comes with an extensive library of audio effects and clean up.
Adobe Audition is the in-depth audio software in the Adobe family. It's primary focus is sound. Bonus, if you are editing a video in Premiere, Audition can open that project to allow for audio work.
I feel like I've only scratched the surface on the capability of these Adobe products, but I've been able to do what I needed to do!