SKU: 23894559385

Smatrul Self-Powered Wireless Model Doorbell - BLACK (2 Button / 1 Receiver)

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Description

Smatrul Self-Powered Wireless Model Doorbell - BLACK (2 Button / 1 Receiver)60 Music Selection The doorbell has 60 melodies for you to choose from, and the doorbell volume has 4 adjustable levels, namely "Large, Medium, Small, Silent" levels, from 0dB to 110dB. The pleasant sound of the wireless doorbell can spread throughout the house and walls, and can be heard anywhere in the house to notify you that a guest has arrived. Battery free transmitter The transmitter of this wireless doorbell does not require the installation of

【60 Music Selection】

The doorbell has 60 melodies for you to choose from, and the doorbell volume has 4 adjustable levels, namely "Large, Medium, Small, Silent" levels, from 0dB to 110dB. The pleasant sound of the wireless doorbell can spread throughout the house and walls, and can be heard anywhere in the house to notify you that a guest has arrived.

【Battery-free transmitter】

The transmitter of this wireless doorbell does not require the installation of batteries. The principle is to drive the wireless signal by pressing and generating electricity. It is waterproof, does not require batteries, and is green and environmentally friendly. You no longer have to worry about replacing batteries. (Only supported by Model B)

【LED indicator】

When the transmitter is pressed, and a signal is received, the blue LED indicator on the receiver flashes. This function is also helpful for people with severe hearing loss.

 

【Suitable for multiple scenarios and diverse groups of people】

This home wireless doorbell uses RF433 high-frequency electronic technology, which has strong anti-interference ability, ensuring that multiple groups of devices can work separately without crosstalk. This wireless doorbell is ideal for classrooms, offices, hospitals, restaurants, and factories. In addition to the doorbell function, this wireless doorbell can also be used as a night light or a pager for the elderly, making it a versatile device suitable for any environment.


【Easy to install and use】

This wireless doorbell does not require a WiFi connection or wires; just stick the doorbell wireless button on the door and plug the receiver into the socket. Please note that although this doorbell wireless button can be installed on nearby walls, it is not recommended to install it on metal doors.

--Transmitter installation method:

 

1. Double-sided sticker

Use one side of the double-sided sticker to stick to the bottom of the transmitter, and the other side to stick to the place to be installed (it is not recommended to install on iron doors, which will affect signal transmission)

 

2. Screw installation

First, determine the installation location, then use professional tools to drill holes in the wall and install rubber plugs, fix the bottom cover to the wall with screws, and then push the transmitter along the slide rail to lock it in place. (Please refer to the manual for specific steps)

 

Technical parameters:

 

--Power supply: self-generated (no battery required for Type B). CR203 (Type A)

--Power consumption: 0.25W

--Music: 60pcs

--Ringtone volume: maximum 110db

--Weight: 120g

--Signal transmission distance: greater than 150 meters (open area)

--RF frequency: 433MHZ

--Operating temperature: -20℃~60℃

Plug: EU PLUG

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 23894559385

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4.8 ★★★★★
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Product Reviews
D
Verified Purchase
Dick Forney
Natrona Heights, US
★★★★★ 4
Excellent Though Quite Different Than I Expected
I lover the old Disney film version of Sword in the Stone, so I finally got around to reading the book. I love the first where it is a whimsical children’s tale. I expected a different feel as it went on and it does, just not quite what I thought it would be. I found it amusing that it is written as an almost companion to Mallory. Take that for what you will, but it is quite enjoyable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
L
Verified Purchase
lee thomas
San Leandro, US
★★★★★ 5
A classic
Format: Mass Market Paperback
The Once and Future King is a saga I didn't want to end. There's enough in it to read it again, and again. The paperback squeezes 4 books into a volume you can carry in a purse, but unless you're traveling, I would recommend buying the books separately, with illustrations.
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Reviewed in the United States on May 9, 2026
Z
Verified Purchase
Zoeeagleeye
Waukegan, US
★★★★★ 5
The Once and Future TH White
This book is in my lifetime top ten list. I've read it three times. Its pages are full of wisdom, humor, mysticism and hard life, an unbeatable combination. I call the story "a hopeful tragedy." For sure it is a high tragedy up to Greek levels and then some. And yet it's hopefulness lies in King Arthur's ability to continue deepening, learning, reaching for the goodness that he still believes is in every person. Someone said that The Once and Future King was the "Harry Potter" of its day. While I love the Harry Potter series, Rowling is no T.H. White. Her writing is a serviceable yeoman's march compared with White's kingly, profound, sometimes soaring performance. Harry changes very little as he grows up, while his supporting characters seem to stay exactly the same. Not so with Arthur. He changes before our very eyes, sometimes not for the better, as does Lancelot, Guinever and others. Though both tales are mythological, White's story feels real and gets us deep down in the bowels of our conscience, our morality and our fears. Eventually, it provokes compassion, allowing us to become more forgiving of ourselves and others. Not a bad way to live in the world. When you really learn something, you become a different person. You will really learn something from The Once and Future King, making T.H. the Once and Future White.
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Reviewed in the United States on May 17, 2009
P
Verified Purchase
P. Smith
Los Angeles, US
★★★★★ 3
Not what I expected
Format: Mass Market Paperback
I love stories about King Arthur and that time period in general. I really looked forward to this book because of the high ratings and my special interest in the subject. There was a lot to like about the book. The author was imaginative and, at times, the writing and characters came alive. I have to say sometimes it was kind of like riding in an old car over a road filled with pot holes -- I kept getting shook out of the story by either references to things not from that time period or the endless social commentary that seemed to be the real point in the author writing the story. By about halfway I was wondering why he didn't give up on the story and just write a philosophy book. He wasn't being subtle. I just wanted to get back to the action and felt like I was being preached at through the narrator and the characters. I also love historical details but be aware that this author tends to mention armor and then go on and on for a while to explain it down to the tiniest detail - same with jousting - the details of what the men are wearing as fashion - what is hanging in the room - and so on. As for the characters, it was sad to see Arthur diminish to being almost a shadow or joke near the end. The glorious king who was supposed to be so strong appeared to have no power to do anything and even allowed himself to have no voice in his own court (Gawaine did the talking). He didn't have any real presence after the very beginning though - not even as a tragic character until the very end. The author didn't make him feel like a real person in what is supposed to be his story. Arthur is the shadow between Lancelot and Gwen (or Jenny), Arthur is the go-between for the vengeful knights in his failing efforts to keep peace... He stands back hoping something will happen to stop the burning of his wife... he is not instigating but moderating action. He is even described as plain, shuffling... Not the grand King Arthur. Merlyn was a joke as well. His magic was more like a Disney cartoon special than anything resembling Arthurian legend and the constant references to things from the future (or Merlyn's past if you buy him living backwards) kept yanking me out of the "story world" and the other characters almost never reacted to it - as if it were normal. He leaves soon after Arthur becomes king and never comes back (you know the whole locked in the cave thing). The character most fleshed out is Lancelot. The author spends a great deal of time into his motives, feelings and actions through almost the entire book. If it weren't for the very beginning, you might be able to make an argument that more is written of Lancelot than of Arthur. Lancelot seems stronger, more driven and more clearly defined nearly at all times in the book. You know what he wants and how far he'll go to get it. In the end I am glad I read it, but it isn't my favorite Arthurian book and I doubt I'll read it again.
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Reviewed in the United States on November 30, 2010
D
Verified Purchase
David Seth Michaels
Houston, US
★★★★★ 5
A Classic
Format: Mass Market Paperback
A classic that deserves to be re-read to our children and grandchildren
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026

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