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Wireless Door Bell | Best Wireless Doorbell

100 reviews
100% of buyers enjoyed this product! 866 orders
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KERUI M521 Smart Doorbell Home Security Welcome Wireless Doorbell 57 Chime 100m Remote Control With Battery Powerd Door Button

Wireless Door Bell

1.Strongly recommended:

This doorbell has a novel design, ringing bell, up to 57 music tracks to choose from, adjustable volume level 4, the host has memory function, each time the doorbell prompt tone is set for the last shutdown, the host can set the doorbell button to play the fixed door ring tone.

The doorbell host and the doorbell button can be coded wirelessly. Suitable for villas, clubs, leisure centers, hotels, guesthouses, families, office buildings, conference rooms and other occasions.

Wireless Door Bell Function explanation

2.Multiple collocations:

The distance of 100 meters is enough to cover all the doors and windows of your house. Each wireless doorbell receiver can be paired with up to 20 magnetic door alarm sensors, and each sensor can add an unlimited number of receivers. Not only the doorbell but also can be used as a greeter alarm.

Tags: wireless doorbell | best wireless doorbell

Wireless Door Bell for Home

3.Wide Range and Long Distance

1.Stable quality is ideal for villas, hotels, schools, and other areas.

2.The wireless signal will be affected by obstacles. The more obstacles, the more serious the signal loss.

3. Warm tip: The button cannot be placed on an iron door because it will interfere with the signal.

Wireless Door Bell for Office

4.Strong penetrating power

High-frequency transmission technology, partition wall can also transmit signals to meet household needs without worrying about not ringing the doorbell. up to 100m distance transmission, No longer afraid of not hearing the doorbell.

Wireless Door Bell

5.57 Ringtones Available:

Different places use different ringtones, or different times use different ringtones and have a good mood every day.

Wireless Door Bell

6.Different Song Use for Different Mode

You can set different music for different environments at the same time.

57 Music Songs optional.a variety of combinations each button can set different ringtones

7.Multiple collocations

You can choose different packages according to your family type.

Wireless Door Bell for Home and Office

8.Two-step installation

Step 1: Remove the double-sided adhesive tape and stick it on the back of the button, then stick the button on the wall.

Step 2: Plug the doorbell host into the socket

Wireless Door BellWireless Door Bell

Product Detail

Operating voltage: 100 ~ 240 V, 50 ~ 60 Hz AC

Operating power: 0.5W

Receiving frequency: 433MHz


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

100 reviews
100% of buyers enjoyed this product!
5 stars
4 stars
3 stars
2 stars
1 star
verifed buyer
7 Aug 2021


verifed buyer
6 Aug 2021

Great call

verifed buyer
31 Jul 2021

All OK. Makes it well to the balcony, while the volume is excellent for the maximum is not necessary to put and the main battery is included

verifed buyer
29 Jul 2021

I use it myself, now I bought it for my parents. Worthy goods of good quality. Recommend

verifed buyer
26 Jul 2021

The call is cool, very loud. Looking quality! Delivery in Kharkov is less than a month.

verifed buyer
23 Jul 2021

11 days to St. Petersburg. Works OK. The battery is included. Pulled out a safety cardboard strip from the button and everything worked.

verifed buyer
22 Jul 2021

Very well. Music plays, the bulb glows, everything is fine)

verifed buyer
19 Jul 2021

Perfect! White, small, 57 melodies, I'm delighted!!! Recommend

verifed buyer
17 Jul 2021

Delivery in postomat 3 days. Quality. 50 meters from the house to the fence takes on Hurray. Aesthetic. the choice of melodies is huge and good. Volume adjustment. Satisfied with the purchase. Thank you.

verifed buyer
16 Jul 2021

The button is hanging on the iron gate, through the wall with the window, works, the volume is sufficient, like

verifed buyer
15 Jul 2021


verifed buyer
15 Jul 2021

Все четко

verifed buyer
13 Jul 2021

Great call! Got there quickly, tracked! I recommend to everyone and the goods, and the store!

verifed buyer
10 Jul 2021

Not very loud, if you put in the closet you can not hear

verifed buyer
8 Jul 2021

Excellent call, loud truth, on the minimalka, even loud, if you consider that small children sleep in the house. Came quickly to Ufa, the courier delivered. In the button there is a battery (tablet). Through the metal door takes excellent. I recommend the goods and the store)

verifed buyer
2 Jul 2021

He arrived soon and works very well.

verifed buyer
1 Jul 2021

The parcel arrived quickly enough, packed perfectly. I tried, everything works. For some reason, the instruction is not attached. Well, I recommend the store.

verifed buyer
1 Jul 2021

Envío muy rápido. Funciona muy bien. Tiene un volumen lo suficientemente alto como para escucharlo bien. Tiene bastante alcance, yo lo tengo el pulsador a unos 50 metros del timbre y funciona perfectamente.

verifed buyer
30 Jun 2021

Excelente, lo probé y que producto tan excelente, y lo más bueno fue que llegó muy rápido, recomiendo al 100% este vendedor

verifed buyer
30 Jun 2021

Посылка дошла до Канска красноярский край за 8 дней, доставил курьер до двери, трек отслеживался, мелодий около 30 шт, полифония средняя.

verifed buyer
28 Jun 2021

Great, with the alarm running, punching through two concrete walls.

verifed buyer
27 Jun 2021

It works very well.☺️

verifed buyer
27 Jun 2021

Quality call! I have 20 meters quietly gets, a large selection of melodies, batteries in the kit and it is better immediately on the site to order plastic protection from rainfall for the button

verifed buyer
24 Jun 2021

всё супер всё работает батарейка в комплекте

verifed buyer
19 Jun 2021

В Краснодар прибыл за 10 дней. Хорошо упакован, соответствует описанию. Звонок ну очень хорош, мелодий на любой вкус, нет необходимости в батарейках, питание через электрическую сеть. Спасибо продавцу, и конечно же рекомендую!

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