


KOMA Elektronik Electret Microphone Sensor
Marsoni
M251S
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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- Express: 1-2 business days
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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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★★★★★ 5
Definitely beats sleeping on the floor!
Color: Grey, Size: Twin
I was sleeping on the floor with my dog after she had emergency surgery and this helped me get through those tough couple of weeks. Comfortable and not too heavy. Comes with a bag to store it in and helps make it easier to move around.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Comfy
Color: Grey, Size: Cot
Very comfortable even for large children and adults.
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Reviewed in the United States on May 16, 2026
★★★★★ 4
Good quality
Color: Grey, Size: Queen
Stays frim. Great for visitors when they spend the night. Easy to store.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Comfortable folding mattress
Color: Grey, Size: Twin
Thickness is great, very comfortable. Adult grandson uses it when he sleeps over. Would recommend it.
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Reviewed in the United States on April 8, 2026
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More Comfortable than an Airbed
Color: light gray, Size: cot
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