KOMA Elektronik Electret Microphone Sensor

KOMA Elektronik Electret Microphone Sensor

Marsoni

M251S

$39.00

Get it in 3 business days with 1 day shipping. Friday, May 29

KOMA Elektronik Electret Microphone SensorThe Koma Electret Microphone provides a simple solution to use your surroundings as a source of samples. The board features a little trimmer to adjust the gain of the microphone pre amplifier. Use a little screwdriver to adjust the gain according to the printing on the sensor board. Its preferable to adjust the signal level with the trimmer first and only use the level pot of the analog signal interface as a second adjustment stage. The electret

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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TL;DR: Not worth the money I’ve had quite a few cooling pillows and, while not the worst, this is also not the best in my experience. First, I had to take the cover off. It was ridiculously thick, thereby negating any cooling effect that I could feel. With the cover removed, the cooling sensation is noticeable when laying your head on it and it lasts for a minute or so. On the bright side, when the cooling feeling completely dissipates, the pillow doesn’t feel hot like some others. Having to lay on it without the cover makes it less comfortable because of the encasing material. Other than that, I’d rate the support and comfort as mediocre as well. Not worth the money in my opinion, maybe if it was about 33%-50% less.

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Reviewed in the United States on January 21, 2023

Verified Purchase

LadyO

Houston, US

★★★★★ 5

Firm yet comfortable

We have purchased several of these pillows over the past few years. They have held up well and held their shape and firmness, even with washing. They are the right height for neck comfort and we do not need to double up pillows anymore to get a good night's sleep. They are also a good firmness to rest against while sitting up in bed.

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Reviewed in the United States on January 2, 2025

Verified Purchase

Robert Schneider

Charlottesville, US

★★★★★ 1

Is this a Casper or Tempurpedic?

When I went to wash the pillow covering I discovered that it iterally had a Tempurpedic factory pillow covering underneath the Casper factory pillow covering - leading me to believe that it was either a return item shipped out as new, and the previous owner actually returned a Tempurpedic pillow disguised as a Casper, or Casper is actually manufactured by Tempurpedic and uses the Casper brand to upcharge. Either way - it's turned out to be an overly expensive - mediocre pillow.

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Reviewed in the United States on July 25, 2025