RainyFi UHF RFID based ESP32

Marsoni

M251S

$116.95

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

RainyFi UHF RFID based ESP32RainyFi, a high performance RFID module designed for the ESP32 S3 WROOM 1. Combining cutting edge RFID technology with the power of a dual core processor and integrated Wi Fi & Bluetooth LE, RainyFi is perfect for both hobbyists and professionals who need a versatile, high speed RFID solution. Key Features: Powerful Processor: Equipped with an Xtensa dual core 32 bit LX7 processor running at up to 240 MHz, offering robust performance for demanding

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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My dental hygienist recommended this when I told her I used a cough drop during the night bc I coughed. Obviously cough drops are not good for your teeth, and I found these serve the same purpose! They stick to the roof of your mouth & provide moisture all night long. So glad I found out about them. Pleasant taste - lasts all night.

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Reviewed in the United States on May 10, 2026

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kidsfirst

San Leandro, US

★★★★★ 5

These work!!!!

Size: 40 Count (Pack of 1)

I was waking up with several times a night super dry mouth even after drinking water. These tablets cured the dry mouth and now I am back to sleeping all night

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Reviewed in the United States on May 28, 2026

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alana

Belleville, US

★★★★★ 3

Lasted about an hour

Size: 40 Count (Pack of 1)

Today I used my first mint flavored melt, it lasted for exactly an hour. I didn’t have super high expectations for this to last 8 hours, but want to see if it would improve my overall enamel and prevent cavities. I was hoping it could help my night time dryness from a chronic stuffy nose and sleeping with my mouth open. I placed it upper molar area, but I think it’s good even still.

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Reviewed in the United States on May 5, 2026

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Ramal s

Port Orchard, US

★★★★★ 5

No more dry mouth in the mornings

Size: 40 Count (Pack of 1)

Finally waking up without dry mouth. I do have to use 1 on each side, and they’re hard to stick on, but honestly worth it. I’ve been getting cavities from dry mouth due to medications, and I’m so glad I’ll be able to prevent them from getting worse.

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Reviewed in the United States on June 1, 2026

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Lucy

Lexington, US

★★★★★ 5

Amazing product!

Size: 40 Count (Pack of 1)

This is something that actually works! I am amazed at these dry mouth melts! They work great and I am very happy after trying multiple products that never seemed to work. The only complaint I would have is that they dont last all night for me, so I just use 2. but I am very satisfied with them and how good they work.

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Reviewed in the United States on May 24, 2026