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Description
10 PCS Sound Detection Sensor Module Microphone Module Voice Control Whistle Switch For Arduino(Blue Board)1. It can detect the sound intensity of the surrounding environment. Note: This sensor can only identify the presence or absence of sound (according to the principle of vibration) and cannot identify the size of the sound or the sound of a specific frequency 2. Adjustable sensitivity 3. Working voltage: 3. 3V 5V 4. Output form: digital switch output (0 and 1 high and low level) 5. Equipped with fixing bolt holes for easy installation 6. Small board
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.2 ★★★★★
Based on 2366 reviews
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Product Reviews
★★★★★ 5
An Archival quality 4k
The Director's Cut is marvelous and this new 4K release is sensational. The image quality is remarkable and yes, noticeably superior to the Blu-Ray release. The audio is also worth mentioning here, so do not think you will be in any way disappointed.
While the price is a bit step, I just waited for a good sale and nabbed it at 50% off.
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Reviewed in the United States on February 20, 2026
★★★★★ 5
One of my favorite movies
This Director's Cut takes an already excellent movie and makes it even better. I seriously doubt I'll ever watch the theatrical version again.
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Reviewed in the United States on March 1, 2026
★★★★★ 5
Worth the money
best that has ever looked
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Reviewed in the United States on February 20, 2026
★★★★★ 5
Dark City is one of the best sci-fi movies of the 90s
Great movie cult classic it came out one year before the Matrix
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Reviewed in the United States on December 19, 2025
★★★★★ 1
Beware
Beware, I bought one of these and there was only a Blu-Ray in the case, no 4k disc. Sent it back.
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Reviewed in the United States on January 13, 2026
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