So, I was browsing online for a rare kind of microphone... [View all]

I found one at an online-store, but it didn't have the technical specs I was looking for.

Oh, look! At the bottom of the page there's a list of related articles! I wonder if I can find something useful there.

https://www.ghostshop.com/product/sem-simple-energy-meter/
The Simple Energy Meter measures the energy around you. It can blink and beep.

https://www.ghostshop.com/product/earth-wave-manifester/
The Earth Wave Manifester allows you to record your emotions of wishing somebody well and to continually broadcast them in your stead. Rechargable via USB-cable.

https://www.ghostshop.com/product/radionics-machine/
Behold the power of a Machinamentum Mentis! From the product-description:

The “Wish” Machines are built around the principle of mind power. At first this seems absurd. However the concept of “Mind Over Matter” has been a staple of the human experience. Commonly this type of idea is scoffed at by skeptics however they are perfectly willing to accept the concept of the “Placebo effect” with thousands of documented cases of the mind healing the body.
...
Please note this device makes no claims to heal and is intended for experimental use only.