SKU: 20269440834

Smatrul WIRELESS DOOR BELL - 2 RECEIVER / 2 BUTTONS - BLACK

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Description

Smatrul WIRELESS DOOR BELL - 2 RECEIVER / 2 BUTTONS - BLACKContinuous Optimization and Upgrades The SMATRUL doorbell continues to improve and upgrade, bringing you a brand new diamond cut design. Not only is it more beautiful, but it also offers more comprehensive functionality: doorbell + SOS call + colorful night light, a practical three in one design that makes life safer and more convenient. We constantly listen to our customers and continuously improve our products to provide you with a better

Continuous Optimization and Upgrades

The SMATRUL doorbell continues to improve and upgrade, bringing you a brand new diamond-cut design. Not only is it more beautiful, but it also offers more comprehensive functionality: doorbell + SOS call + colorful night light, a practical three-in-one design that makes life safer and more convenient.

We constantly listen to our customers and continuously improve our products to provide you with a better experience.

--[Lifespan]

The transmitter is tested to 100,000 presses. Powered by a CR2032 battery, it boasts an exceptionally long battery life of 8 years (based on two presses per day, each lasting two seconds).


--[Over 350m Wireless Signal Range]

Continuous optimizations have enabled this wireless doorbell to receive signals from a distance. The strong, penetrating wireless signal provides an ultra-wide range of 350 meters, capable of penetrating steel and wooden doors and walls. Please note that this distance is in the open air.

--[Diamond-Cut Appearance]

Diamond-cut craftsmanship: The unique diamond-faceted appearance creates a stylish and premium look when light and shadow are reflected.

 

Crystal Clear Texture: The diamond-like design dazzles, making it more than just a doorbell; it's also a home decor accessory.

 

Light Mapping for Even More Beauty: The dazzling night light combines with diamond-cut facets to create a warm atmosphere.

 

Simple + Luxury: The white exterior with diamond-cut finishes complements any decor style.

 

--[5 Lighting Modes + SOS Alarm Mode]

 

1. Flowing Color: Different colors connect to form a ring, flowing and changing.

 

2. RGB Flow: Continuously switches between solid colors like red, green, and blue.

 

3. RGB Breathing Light: Shifts between bright and dim in a rhythmic manner, like breathing.

 

4. Constant Color: The colored rings remain constantly lit.

 

5. Constant Night Light: Continuously illuminates in white, serving as a night light.

 

SOS Alarm Mode: Can be paired with an SOS button. When triggered, it emits a sharp alarm sound and flashes a red light.

--[110dB Ultra Loud Volume]

The receiver's maximum volume reaches 110dB, allowing the ringtone to be heard throughout your home, ensuring you never miss a guest.

--[Power Failure Memory]

After a power outage, the doorbell will retain your volume, music, and lighting settings, allowing you to easily restore your preferred settings.

--[Front and Rear Door Distinction]

When a receiver is paired with two or more transmitters, you can set different ringtones. The receiver must select a tune before pairing. The transmitter will then lock the currently selected tune. If your home has two or more front doors, this feature helps you instantly identify which door a guest is entering.

--[High-Quality Copper Pins]

Compared to most doorbells on the market that use iron pins, we opted for copper pins. These pins are more resistant to oxidation and corrosion, resulting in better conductivity.

 

--[62 Music Tracks]

The doorbell features 62 melodies for you to choose from. (Shortcut: Long-press the "Previous Song" button to instantly return to the first track.) The doorbell volume is adjustable to four levels: loud, medium, soft, and silent. Within ten seconds of selecting your preferred tune, press the transmitter to select it.

IP44 Waterproof Rating

Waterproof rating of IP44, suitable for daily use (for outdoor use, a waterproof cover is recommended and available separately).

Product Specifications

 

Operating Voltage: 90-260VAC
Standby Current: 8mA
Standby Power Consumption: 50mW

Encoding Format: EV1527

Radio Frequency: 433.92MHz

Transmission Range: 350m (Open Area)

Transmitter Battery: CR2032

Waterproof Rating: IP44

Transmitter: 3.97 × 6.63 × 2.02cm / 1.56 × 2.61 × 0.80 inches

Receiver: 5.62 × 5.62 × 7.3cm / 2.21 × 2.21 × 2.87 inches

Packaging Dimensions: NW: 156g

GW: 210g

Quantity: 1pc

Packaging Dimensions: 85 × 68 × 91mm

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SKU: 20269440834

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4.4 ★★★★★
Based on 29 reviews
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Thomas M. Magee
Grantham, US
★★★★★ 3
Insightful but troubled
Format: Hardcover
This book could have been so much more but it fell short. The book does capture a new phenomenon sweeping the world. The growth of social media is that phenomenon. The book does a good job chronicling the growth of social media and its impact on a general scale. Through that growth opportunities were created. The book does a good job of listing how people, groups and countries exploit these opportunities. They advance their respective agenda various ways on social media. I loved the pages which talked about how AI can create fake news with all of the authenticity of an eye witness account. The book lists impacts of these trends with crystal clear words. You can see impact clearer than any other source out there. The negative is the bias of the authors. Who the authors voted for in the last election screams out with every chapter. They use the topic as a club to bash republicans, President Trump, and conservatives. They miss how Democrats were playing the same games as Trump before Trump. This bias causes a reader to lose the message and dangers through politics. David Plouffe, the Obama campaign manager in his book "The Audacity to Win" said he used social media in 08 election. Funny how these people ignore those events to focus on what Republicans do. I also think their constant drum beat of what the Russians do creates a false election that they stole the election. The authors forget the failed policies of Hillary.
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Reviewed in the United States on April 1, 2019
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Peter Mario Ricci
San Leandro, US
★★★★★ 5
Great book!
Format: Paperback, Format: Paperback
Great book. I really appreciate that it was written. It’s very interesting, informative and unfortunately the themes are very relevant at this time. Would definitely recommend the book to anyone interested.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 18, 2025
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The Professor
Charlottesville, US
★★★★★ 5
Documents the influence of American Eugenics on the Holocaust
Format: Hardcover
American Court decisions, and what some call the genocide of Native Americans, was one major source of inspiration behind Nazi policy against both the Jews and people that the eugenic scientists considered inferior races. American policy also was very influential in inspiring the Nazi goal of lebensraum, expanding the Germanic population and reducing, and making slaves, of the Slavic peoples (Poles, Russians and other Eastern populations). Following Hitler's rise to power, Lebensraum became an ideological goal of Nazism and provided for them justification for the German territorial expansion into East-Central Europe. After all, the Americans decimated the naïve population of America so, the Nazis reasoned, how is that different from the decimation the native population of Eastern Europe? Some even referred to Ukrainians and other Slavic people as "Indians." Reservations for Native Americans was a factor justifying the concentration camps for Jews, only a few of which were death camps, and this is one reason why the Nazis got away with the Holocaust for so long. It was not until after the war when the Soviets liberated the death camps that we knew for certain the extent of the genocide goal of the Nazis. The main extermination camps were Belzec, Sobibór and Treblinka, which served as "death factories." Auschwitz II–Birkenau was a combination concentration/extermination camp. Anti-Semites, eugenicists and racists inspired by Darwinism in the U.S. helped inspire those in Germany, and vice versa. The US was “a global leader in ‘scientific’ eugenics,” so naturally the German scientists would have to rely on American research and law (page 8). The author covered only briefly the well-documented important influence of Darwin and mentioned evolution only in connection with the evolution of racism (p, 114). Conversely, the eugenics idea and movement was discussed 28 times, such as page 8 where the author documents that eugenics was the basis of both the Nazi Germany and American discrimination laws and policy. The support of the U.S. to Nazi German went well beyond that. U.S. bankers and industry, even the weapons industry, invested heavily in the Nazis war machine. Nazis borrowed ideas from U.S. books, such as the 1916 American best seller racist book titled The Passing of the Great Race and other propaganda, such as that developed in World War I. The U.S. refused to admit significant numbers of Jewish refugees, such as in 1939 the United States refused to admit over 900 Jewish refugees who had sailed from Hamburg, Germany, on the St. Louis to the West. Denied permission to land in the United States, the ship was forced to return to Europe where many died in Nazi German camps. The most famous example is the State Department rejected Anne Frank's attempt to enter the United States (pages 53,116, 149).
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Reviewed in the United States on October 29, 2017
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OLD1mIKE
Lake Worth, US
★★★★★ 4
Interesting and Informative
Format: Kindle
Interesting and informative. This is a book about German political leaders and how they perceived the United States, its culture and it’s laws. Although it touches on the American culture and legal system, it is mostly comprised of quotes from German writers, lawyers and politicians. It’s worth reading if you are interested in how the German goverment evolved the laws supporting the eventual persecution of its Jewish citizens. This is a book about Germany and makes some high level generic observations on American Eugenics and Race Laws. It is informative and makes some interesting observations on our race laws, but if you’re more interested in the United States race law history, I would recommend something more focused the United States.
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Reviewed in the United States on November 1, 2023
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Verified Purchase
Silesia
Belleville, US
★★★★★ 5
Much Better than its Title.
Format: Hardcover
The author, Professor of Comparative and Foreign Law at the Yale Law School, tells us in the Acknowledgments that Princeton U. Press received from some of its referees "suitably bilious responses", validating his decision to bypass commercial publishers. Still, James Q. Whitman assures us time and again that he has nothing nefarious in mind, that Hitler's extermination ideology was not made in the USA, as the title may suggest. Instead, he brings to light the keen scholarly interest nationalist and Nazi German jurists took in contemporary American race legislation and Jim Crow practices. By separating the racist dimension of the "American Legal Realism" of the 1930s from its larger liberal context, Whitman arrives at the true nexus with its German counterpart. The " 'realists' of both countries shared the same eagerness to smash the obstacles that 'formalistic' legal science put in the way of 'life' and politics - and 'life' in both New Deal America and Nazi Germany did not include only economic programs (...). 'Life' also involved racism." (p. 156) The author's familiarity with both, the German and American legal landscapes of the 1930s and 40s and his painstakingly sober analysis, assure this reader that the book is exactly NOT "spellbinding and haunting", as one dust-cover reviewer sees it. The topic could be embedded in the larger history of the American eugenics movement, so carefully illuminated by Christine Rosen (Preaching Eugenics (Oxford, 2004) who cites this opinion of the great Oliver Wendell Holmes, abbreviated in our book: "It is better for all the world, if instead of waiting to execute degenerate offspring for crime, or to let them starve for their imbecility, society can prevent those who are manifestly unfit from continuing their kind. Three generations of imbeciles are enough." (p.150) As contemporaries of the Trump era, we may want to stop and reflect on Whitman's somber conclusion "(...) To have a common-law system like that of America is to have a system in which the traditions of the law do indeed have litte power to ride herd on the demands of the politicians, and when the politics is bad, the law can be very bad indeed." (p.159) Professor Whitman summarizes his interpretation of recent literature that support his thesis as follows: "All of these works paint a darker picture of early twentieth-century American intellectual and political life than we might wish. So does this book." Makes it a timely one, doesn't it ?
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2017

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