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Description
S51 Bluetooth Earphone Anti-theft Security Alarm, S51Features 1. Integrated anti theft charging, stable current, no damage to internal electronic components 2. Separate off hook settings, easy to take off the earphones freely 3. Stretchable alarm wire 4. Stable base, stylish and simple 5. Type C interface, not easy to loosen Host Parameters 1. Alarm volume: about 90 decibels (lab environment) 2. The alarm duration is 4 minutes 3. Battery capacity: 60MA 4. Standby time: 4 days 5. Sleep time: 30 seconds
Features1. Integrated anti-theft charging, stable current, no damage to internal electronic components
2. Separate off-hook settings, easy to take off the earphones freely
3. Stretchable alarm wire
4. Stable base, stylish and simple
5. Type-C interface, not easy to loosen
Host Parameters
1. Alarm volume: about 90 decibels (lab environment)
2. The alarm duration is 4 minutes
3. Battery capacity: 60MA
4. Standby time: 4 days
5. Sleep time: 30 seconds
6. Input power: 5.5V 1.0A
7. Output power: 5.4V 0.5A Mobile phone access prompt response time: 0.2 seconds
8. Mobile phone access prompt response time: 0.2 seconds
9. Mobile phone offline alarm response time: 0.5 seconds
10. Detection method: charging current detection/active pulse detection
Remote Control Parameters
1. Decoding method: infrared
2. Decoding distance: 20cm
3. Service life: 11,000 times
4. Battery model: CR2025 3V
5. Battery capacity: 150MA
Specification:
| Package Weight |
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4.3 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Best post 1900 historical reference book I've read.
Format: Paperback
Best historical reference book I've read - explains the rise of the US since 1900 at the expense of the rest of the world. War and trade is a business model the US has ruthlessly exploited - Hudson has recorded the ugly, callous methodology.
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Reviewed in the United States on May 8, 2025
★★★★★ 5
The paradigm of Dollar supremacy
Format: Paperback
Michael Hudson demonstrates how dollar dominance allows the U.S. to sustain trade deficits and fund overseas commitments by exporting its debt. This system gives the U.S. unique financial advantages, enabling it to shape global economic flows while minimizing domestic strain.
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Reviewed in the United States on August 9, 2025
★★★★★ 5
Good book!
Format: Paperback
My father read this cover to cover!
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Super Imperialism "The Economic Strategy of American Empire".
Format: Paperback
Learning a lot on the economic system of this country. Very interesting and I hope more of the fellow citizens of this country would take the time to learn more on what makes this country so great.
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Reviewed in the United States on July 1, 2025
★★★★★ 5
Global Finance
Format: Hardcover
I am still reading the book. Outstanding information!
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Reviewed in the United States on October 5, 2025