2-Pt. Acoustical Calibrator - Class 2

Marsoni

M251S

$187.00

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

2-Pt. Acoustical Calibrator - Class 2For calibration of all Sper Scientific digital sound meters or any sound level meter with 1 or microphone. Conforms to ANSI S1. 40 1984 and IEC942 1988 Class 2 standards for acoustical calibrators. Simply place the calibrator on to the digital sound meters microphone, turn on the calibrator, and adjust the decibel meters reading to either 94 or 114 dB. Operates at a frequency of 1KHz 4% and with an accuracy of 0. 5 dB. Built in battery check. Easily

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Good looking shoes, fairly comfortable and good value based on the description shared, so I don’t feel it’s fair to rate them lower than 4 stars. I had high hopes for them based on previous reviews from others saying they wore them in the food and beverage industry that mentioned their quality and durability, however I strongly recommend looking elsewhere if you do. I purchased these to wear working in a full service upscale restaurant and in less than two months have managed to have torn the material on the middle exterior section and the bottoms of the shoes are already completely worn down. Good design, but the durability needs to be improved if they’re to hold up for that industry.

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Reviewed in the United States on July 18, 2025

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Damon Richards

Grantham, US

★★★★★ 1

DO NOT BUY (lasted less than 7 months)

Size: 11, Color: Black, Size: 11, Color: Black

I bought these for work as a bartender in August of 2025. By December, the tops were scuffed, frayed, and peeling beyond repair, and by February, the soles were coming off. I’ve never had a pair of shoes with such low quality.

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Reviewed in the United States on April 11, 2026

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Daniel Lucarell

Louisville, US

★★★★★ 5

Most comfortable shoes, right out of the box!

Size: 8.5, Color: Cognac Napa Leather

Oh my! So, my ordering of shoes online has been hit or miss - 1/2 size too big or too small; too wide or not wide enough. Enter these Marc Joseph shoes… such a game changer. They fit like a glove, exceptionally comfortable, and easy to slip in and out of. I like them so much that I am shopping for another pair. So far, the size, quality, fit, feel, look, and comfort make this pair my dedicated first pick. Btw, I have been wearing them for six hours and they are still very comfortable! I highly recommend these shoes.

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Reviewed in the United States on September 28, 2025

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Heydi Ortega

Lake Worth, US

★★★★★ 5

Me gustaron

Size: 9.5 Wide, Color: Black

Llego exactamente la talla que pedí, son como se ven en la foto!

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Reviewed in the United States on June 3, 2026

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