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Description
YANS YS-M21 USB Mini Port Video Conference Omnidirectional Microphone (Black). Using 256ms echo cancellation algorithm, built in voice automatic gain balance (ALC) function, no matter how far away the speaker is, the sound can be picked up clearly 2. 360 degree omnidirectional high sensitivity dual capacitor microphone, effective diameter of 6 12 meters, no dead spots within 20 60 square meters, free to walk around when one person is in a meeting, and everyone can sit in their own place at a multi person meeting No need to get
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.7 ★★★★★
Based on 1127 reviews
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Product Reviews
★★★★★ 5
Very Useful
Format: Paperback
I used these for my A+ exams and I didn’t really end up reading the material. I more so used them for their practice exams. That’s only because there’s a lot of information to digest and I was in a rush to take the exams. I still passed so I find that they are well formatted. The questions imo needs to be read more throughly than the exam questions themselves.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2024
★★★★★ 5
Amazing study tool
Format: Paperback
Perfect for the exam goes along with the actual course 👌
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2025
★★★★★ 5
Details I mok
Format: Paperback
I like the explanations, but I don’t like small print, particularly for older people
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2023
★★★★★ 1
31 pages were missing from the test book
31 pages were missing from the test book
Pages 453 to 484 were missing (see attached photo)
It’s very hard to prepare for a comprehensive certification examination studying from an incomplete text. FYI, the book was purchased new and not damaged, it was bound that way
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Reviewed in the United States on February 18, 2023
★★★★★ 3
Kindle version does not come with tests/flashcards
I did not know this beforehand. They hid this fact waaaay down below and added it in below the details and neglected to add it to the main description at the top. Be advised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2022
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