DFRobot Fermion: I2S MEMS Microphone

Marsoni

M251S

$245.00

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

DFRobot Fermion: I2S MEMS MicrophoneThis digital I2S MEMS Microphone works well with microcontrollers with I2S audio outputs like ESP32. Compared with traditional analog ones, this microphone features low noise, high sensitivity & reliability, and other excellent performances, which make it applicable to projects like voice recognition, recording, AI learning, Bluetooth audio transmission, and so on. This module uses surface mount MEMS I2S microphone sensor with top port, no components

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If your dog pulls on these (and why wouldn’t he?), the rope immediately comes out. Turns out they just fuse the ends of the nylon rope together, which is no match for a dog playing tug. Any dog, any level of pulling will dismantle these. We’ve managed to reinsert the rope to a couple of these and KNOT it, which gives you a shorter rope but a toy that can withstand some play. But if I had wanted a DIY toy, I’d have used the balls and rope I already own.

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Reviewed in the United States on December 11, 2025

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Lesly

Birmingham, US

★★★★★ 3

Not for super chewers!

Color: Four colors, Size: 5cm (with rope), Color: Four colors, Size: 5cm (with rope)

These rope ball toys arrived today. My poodle puppy loves rope ball toys and playing tug of war. These didn’t last 10 minutes. For context, she is 1 y.o., 30 lbs., is not teething & has her adult teeth. She did this on her own- we were not playing tug of war at the time the toy fell apart. At least there are 3 more in the package & when the rope is done, we’ll still have the balls to play with.

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Reviewed in the United States on April 15, 2026

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Kimberly Farnham

San Leandro, US

★★★★★ 4

Great for small dogs

Color: Four colors, Size: 5cm (ball only)

Durability

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Reviewed in the United States on February 28, 2026

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JewelsfromJerri

Phoenix, US

★★★★★ 5

Fun, Durable Balls for smaller heavy chewers

Color: Four colors, Size: 5cm (ball only)

Perfect size and strength for my small dog that is a heavy chewer! She hasn’t been able to destroy and chew up this one like she has with every other toy! Definitely chew resistant.

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Reviewed in the United States on April 26, 2026