Sony Spresense Extension Board

Marsoni

M251S

$54.00

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

Sony Spresense Extension BoardSpresense is a compact development board based on Sonys power efficient multicore microcontroller CXD5602. It allows developers to create IoT applications quickly and supports both the Arduino IDE and the advanced NuttX SDK. The Spresense Extension Board adds several connectors including: 3. 5 mm headphone jack MicroSD card slot (card not included) Extra USB port Multiple microphone pins The main Spresense board and this extension board connect via a

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These mats should work fine for my application. I’m applying it to the back sides of the hollow core doors on the closet where my HVAC is installed to reduce the “hum” from passing through. If I were sound deadening my automobile, I would probably use a heavier gage material. Overall, good product at a reasonable price.

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Reviewed in the United States on March 21, 2026

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vivian johnson

Belleville, US

★★★★★ 5

Very good product

Style: 36 Sqft 80 mil

Easy to install, very sticky. Will buy again.

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Reviewed in the United States on May 20, 2026

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Samantha

Boise, US

★★★★★ 5

Works well and doesn’t break the bank

Style: 36 Sqft 80 mil

Awesome value for low budget wound deadening. Used this under the floor mat on my international 4300 and there is a noticeable difference in sound inside the cab.

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Reviewed in the United States on May 5, 2026

Verified Purchase

Miguel Rojas

Los Angeles, US

★★★★★ 5

It works

Style: 36 Sqft 80 mil

Great product

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Reviewed in the United States on May 9, 2026