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AVANTEK Wireless Door Bell, CW-21 Mini Waterproof Wireless Doorbell Operating at Over 1000 Feet, 2 Remote Buttons Can Have Different Tones, 52 Melodies, CD Quality Sound and LED Flash

4.7 4.7 out of 5 stars 9,092 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Door Bell Kits by AVANTEK

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Extra Savings Save 10% on AVANTEK Mini Size Push Button when you purchase 1 or more Qualifying items offered by AVANTEK US. Enter code LTCVOEIL at checkout. 2 Applicable Promotion(s)
  • Save 10% on AVANTEK Mini Size Push Button when you purchase 1 or more Qualifying items offered by AVANTEK US. Enter code LTCVOEIL at checkout. Shop items
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2 Transmitters White

Purchase options and add-ons

  • EASY TO SET UP: 2 transmitters included; can add more AVANTEK Mini receivers for increased coverage; simply fix the transmitter on the wall without any wiring; includes 4 screws, 4 anchors, 1 key and 2 double-sided adhesive pads
  • 300 M/1,000 FT ULTRA LONG WIRELESS RANGE: Will not interfere with other equipment in your home or those of your neighbors; ensures you will never miss a visitor, even if you are a few rooms away or on another floor
  • TAILOR YOUR TRANSMITTER: 1.1 in (29 mm) stereo speaker delivers rich and crisp sound; 52 melodies and 5 adjustable volume levels with a maximum setting of 115 dB; set a different ring tone for each transmitter so that you know exactly which doorbell has been rung
  • HIGH PERFORMANCE: The transmitter has ultra-low power consumption; uses a CR2032 lithium battery that boasts 3-year maximum lifespan; IP55 dustproof and waterproof rating; works between -4 °F to 140 °F; withstands various harsh weather conditions
  • MEMORY FUNCTION: Remembers your last melody and volume level after a power outage; no need to reset to your previous settings; convenient and easy-to-use design for an enhanced user experience
See more product details

Customer ratings by feature

Easy to install
4.9 4.9
Motion detection
4.8 4.8
Volume control
4.8 4.8
Adhesion
4.7 4.7
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AVANTEK Wireless Door Bell, CW-21 Mini Waterproof Wireless Doorbell Operating at Over 1000 Feet, 2 Remote Buttons Can Have Different Tones, 52 Melodies, CD Quality Sound and LED Flash

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Product Description

CW-11 BIG
12345

All of the following AVANTEK doorbells with plug-in receivers can be paired with each other: CB-11/CW-11/CB-12/CW-12/CB-21/CW-21/D-3B/D-3W/D-3G/D-3F/DB-21 (For orders purchased before 2021, it is best to tell us to inquire whether they can be paired.)

distance

Long Operating Distance

With a reliable wireless range of 1,000 feet and strong signal penetration, the doorbell will never fail to alert you when someone shows up at the door. Enjoy a reliable and hassle-free doorbell system at home, in factories, offices, classrooms, apartment blocks, villas, and other large areas.

size

Convenient Size

After carefully researching customer feedback, we have upgraded the design of the receiver station, giving it a smaller size of just 2.8 (L) x 3.1 in (W), so that it won't block off any neighboring power sockets.

ip55

IP55 Waterproof

IP55 waterproof and functional between -4 °F to 140 °F, the doorbell can operate in even the harshest weather conditions.

music

Music to Your Ears

The doorbell boasts an ample selection of 52 melodies from traditional doorbell chimes to jingles, certainly offering a chime that suits your taste.

cw-11-2

Mute Mode

The silent volume level doesn’t disturb a sleeping baby and the maximum level of 115 dB is hearable by the hearing-impaired or even during a party.

d-9

Memory Function

Thanks to its smart memory function, it remembers your previous set melody and volume level - even after a power outage.

anzhuang

Compare AVANTEK Wireless Doorbell Kits & Accessories

cw-21

CW-21 Doorbell Set

cw-11

CW-11 Doorbell Set

cw-12

CW-12 Doorbell Set

wa-11

WA-11 Doorbell Set

d-3w

D-3W Doorbell Set

d-3f

D-3F Doorbell Set

CR-1

CR-1 Receiver

Customer Reviews
4.7 out of 5 stars
9,092
4.7 out of 5 stars
48,003
4.7 out of 5 stars
9,092
4.6 out of 5 stars
7,278
4.7 out of 5 stars
48,003
4.6 out of 5 stars
3,933
4.4 out of 5 stars
735
Included Components
1 Receiver + 2 Push Buttons 1 Receiver + 1 Push Button 2 Receivers + 1 Push Button 1 Receiver + 1 Push Button 2 Receivers + 1 Push Button 1 Receiver + 1 Push Button 1 Receiver
Wireless Range
1000 feet 1000 feet 1000 feet 1000 feet 1300 feet 1300 feet 1000 feet
Power Source
AC plug-in + CR2032 battery AC plug-in + CR2032 battery AC plug-in + CR2032 battery AAA batteries + CR2032 battery AC plug-in + CR2032 battery AC plug-in + CR2032 battery AC plug-in
Adjustable Volume
0–115 dB, 5 volume levels 0–115 dB, 5 volume levels 0–115 dB, 5 volume levels 0–120 dB, 5 volume levels 0–115 dB, 5 volume levels 0–115 dB, 5 volume levels 0–115 dB, 5 volume levels
LED Indicator
Waterproof
Memory Function

From the brand

Product guides and documents

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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AVANTEK Wireless Door Bell, CW-21 Mini Waterproof Wireless Doorbell Operating at Over 1000 Feet, 2 Remote Buttons Can Have Different Tones, 52 Melodies, CD Quality Sound and LED Flash


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AVANTEK Wireless Door Bell, CW-21 Mini Waterproof Wireless Doorbell Operating at Over 1000 Feet, 2 Remote Buttons Can Have Different Tones, 52 Melodies, CD Quality Sound and LED Flash
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Price$25.99$22.99-9% $19.99
List:$21.99
$19.99-21% $14.99
List:$18.99
$28.99
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Easy to install
4.9
4.8
4.8
4.7
4.8
4.7
Volume control
4.8
4.7
4.7
4.5
4.7
4.6
Weatherproof
4.6
4.6
4.6
4.7
4.6
4.6
Motion detection
4.8
2.4
3.3
4.1
Adhesion
4.7
4.7
4.7
4.6
Sold By
AVANTEK US
SECRUI
SECRUI
Electric4Pro
Amazon.com
holan(US)

Important information

Wattage

0 watts

Bulb Voltage

3 volts

Customer reviews

4.7 out of 5 stars
4.7 out of 5
9,092 global ratings

Customers say

Customers like the quality, performance, ease of installation, range and sound quality of the doorbell. For example, they mention it's well made, works well and the instructions are clear and easy to follow. Some appreciate the different sounds it comes with and that it can be heard anywhere in a home.

AI-generated from the text of customer reviews

706 customers mention652 positive54 negative

Customers are satisfied with the performance of the doorbell. They mention that it works well, all setups work flawlessly, and it works automatically. Some say that it's a very good product that exceeds their expectations and is worth the money.

"works really well and effortless to setup." Read more

"...Overall, I would recommend this wireless doorbell set as a great, affordable option that doesn’t draw too much attention to itself...." Read more

"Simple install of a few minutes and works as described. Good value at the price point." Read more

"This wireless bell is terrific and works just as described. I previously relied on traditional..." Read more

686 customers mention675 positive11 negative

Customers find the installation of the home lighting accessory to be easy. They mention that the instructions are clear and easy to follow. They also appreciate the simple design and the provided tool makes installation a little easier. Overall, customers find the product to be a great and easy solution for their home.

"Easy to install and setup. I like the model with the plug in receiver/ringer. No batteries to change except for in the doorbell sending units...." Read more

"works really well and effortless to setup." Read more

"Wow, it worked directly out of packaging. Easy set up and loud volume. I really love it." Read more

"These doorbells work well and are really easy to set up (the hardest part is picking which chime to use)...." Read more

365 customers mention306 positive59 negative

Customers like the sound quality of the doorbell. They say it's great loud, has different sounds, and can be heard anywhere in their home. Some mention that the selection of chime sounds worked as advertised and the volume level adjustment.

"...So far the range on this model seems OK and the ringer is loud enough to hear anywhere in my apartment...." Read more

"Wow, it worked directly out of packaging. Easy set up and loud volume. I really love it." Read more

"...each doorbell can be set to a different chime, and the volume gets loud enough to hear from several rooms away if you need it to...." Read more

"...it, the 2 different sounds based on transmitter, nice loud volume controlled CD quality sound it makes and probably some other nice things I already..." Read more

241 customers mention228 positive13 negative

Customers like the tones of the doorbell. They say it offers a wide selection of ring tones, with multiple sounds to choose from. Customers also appreciate that they can set different tones for different doors. The product offers 52 tones and several musical tones.

"...Nice that the buttons can be setup for different ring tones for each button. I setup the back door button with a different tone than the front door." Read more

"...There are a ton of options, each doorbell can be set to a different chime, and the volume gets loud enough to hear from several rooms away if you..." Read more

"Very easy to install and program, nice selection of ring tones, adjustable volume too,.!! Used to cover two ringer locations,.!!" Read more

"...chime notifying me that someone is at my front door. There are several musical tones to..." Read more

161 customers mention148 positive13 negative

Customers are satisfied with the quality of the doorbell. They mention that it's well-made, reliable, and holds up great so far. Some say that it works as described and is perfect for their purposes.

"Excellent quality lasted longer than I expected. Well done👏👏👏made it through 2 rough winters and the blazing sun of summer...." Read more

"...lot about this unit -- it looks high tech and expensive & has a good doorbell button, cool little LCD light when you press it, the 2 different..." Read more

"...we have one in the house and one in our barn. loud and reliable" Read more

"This is a great doorbell. We've had it for quite a while and still works so well." Read more

118 customers mention105 positive13 negative

Customers like the adjustability of the doorbell. They say it has multiple levels of volume and ring tone selection, making it easy to set different tones for the different buttons. Customers also appreciate that both receivers have volume control.

"...There are a ton of options, each doorbell can be set to a different chime, and the volume gets loud enough to hear from several rooms away if you..." Read more

"Very easy to install and program, nice selection of ring tones, adjustable volume too,.!! Used to cover two ringer locations,.!!" Read more

"...There are several musical tones tochoose from and the volume control is adjustable.. The installed battery is still operating..." Read more

"...I love that you can change the chime sound." Read more

116 customers mention112 positive4 negative

Customers are satisfied with the appearance of the doorbell. They mention that it works flawlessly, is neat looking, and is the least visually obnoxious doorbell they have found. The small, black doorbell button looks attractive when mounted on the frame of the front door. Overall, customers are happy with the product's appearance and functionality.

"...wireless was the easiest option and these were some of the least visually obnoxious that I could find...." Read more

"...it looks high tech and expensive & has a good doorbell button, cool little LCD light when you press it, the 2 different sounds based on transmitter,..." Read more

"...Easy to put into place, easy to figure out, aesthetically pleasing, and did I mention it's loud enough to be heard during a demolition derby?..." Read more

"...Easy to sync and affix and simple, unobtrusive design. We've had some pretty heavy rain over the summer, but the device has worked like a champ...." Read more

61 customers mention45 positive16 negative

Customers like the range of the doorbell. For example, they mention the receiver range is good, the overall signal reception is good and it transmits to both receivers great. Some say that the product has enough range between the door and the receivers that they can have one as far as 40' away.

"...So far the range on this model seems OK and the ringer is loud enough to hear anywhere in my apartment...." Read more

"...well and the overall signal reception is good...." Read more

"...In my house I have the unit mounted on the door. The signal bounces off the opposing wall into the living room, then again into the dining room,..." Read more

"...I like the look and being wireless making it easy to move it if needed...." Read more

They work great, but I wish I would have gotten the battery operated kind
4 Stars
They work great, but I wish I would have gotten the battery operated kind
These doorbells work well and are really easy to set up (the hardest part is picking which chime to use). There are a ton of options, each doorbell can be set to a different chime, and the volume gets loud enough to hear from several rooms away if you need it to.I ordered this specific set because I have a large house with a front and back door that are both commonly used. The biggest benefit to these is the ability to set them each to a different sound. Now, when I hear the chimes, I know exactly which door to run to. My house didn't come wired for bells so I knew wireless was the easiest option and these were some of the least visually obnoxious that I could find. Many of the doorbells that I saw while shopping appear designed for alien spaceships with lights and weird shapes. These are just noticeable enough that people realize you have a doorbell.I really wish that AVANTEK would offer a set of two remotes with a battery operated receiver. I was torn, when ordering, between this set or just getting two battery operated single remote and receiver sets. I went with this one as it was the more economical option, but I’ve regretted it. The issue that I have run into with this set is that having it plugged in all the time means that it gets in the way. I wish I had the option to put the receiver somewhere truly out of the way. Additionally, the chimes aren’t always remembered. When the receiver was unplugged to move it from one outlet to another after initial programming, it forgot the chimes that were programmed for both doorbells. Although, later, the receiver was bumped and knocked out of the outlet and when plugged back in, it still remembered the chimes. A final time, the power went out for over an hour and when it came back on, the chimes were still remembered. So it seems to be fairly hit or miss. Another consideration is that when the power goes out, your doorbell won’t work. While this is true of wired doorbells too, the battery powered options don’t have this concern. If you live in an area where you have common power outages you probably want to consider looking elsewhere if you plan on having visitors during storms.One final note, is that after having these up for over a month, one of the remotes has begun to yellow slightly. This particular remote gets full sun for about half of the day and has been rained on an awful lot. I’m not too upset about it considering the conditions that it sits in, but it’s something to keep in mind. The other remote, which is placed on a door that’s covered by a roof, hasn’t yellowed at all.Overall, I would recommend this wireless doorbell set as a great, affordable option that doesn’t draw too much attention to itself. If you’re not on a strict budget or if you live in a home with limited outlets, I would recommend spending a little more for the battery powered option.
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Top reviews from the United States

Reviewed in the United States on September 25, 2023
Color: 2 Transmitters BlackVerified Purchase
Customer image
5.0 out of 5 stars Working great so far
Reviewed in the United States on September 25, 2023
Easy to install and setup. I like the model with the plug in receiver/ringer. No batteries to change except for in the doorbell sending units. I will need to revise this review if the button batteries don't last though. Haven't had much luck with batteries lasting long during the winter with past wireless doorbells. So far the range on this model seems OK and the ringer is loud enough to hear anywhere in my apartment. The ringer is mounted in the kitchen and I can hear it from the living room and any other room in my apartment. Bough the model with 2 doorbell buttons. Nice that the buttons can be setup for different ring tones for each button. I setup the back door button with a different tone than the front door.
Images in this review
Customer image
Customer image
2 people found this helpful
Report
Reviewed in the United States on February 19, 2024
Color: 2 Transmitters WhiteVerified Purchase
Reviewed in the United States on January 11, 2024
Color: 2 Transmitters WhiteVerified Purchase
Reviewed in the United States on July 2, 2020
Color: 2 Transmitters WhiteVerified Purchase
Customer image
4.0 out of 5 stars They work great, but I wish I would have gotten the battery operated kind
Reviewed in the United States on July 2, 2020
These doorbells work well and are really easy to set up (the hardest part is picking which chime to use). There are a ton of options, each doorbell can be set to a different chime, and the volume gets loud enough to hear from several rooms away if you need it to.

I ordered this specific set because I have a large house with a front and back door that are both commonly used. The biggest benefit to these is the ability to set them each to a different sound. Now, when I hear the chimes, I know exactly which door to run to. My house didn't come wired for bells so I knew wireless was the easiest option and these were some of the least visually obnoxious that I could find. Many of the doorbells that I saw while shopping appear designed for alien spaceships with lights and weird shapes. These are just noticeable enough that people realize you have a doorbell.

I really wish that AVANTEK would offer a set of two remotes with a battery operated receiver. I was torn, when ordering, between this set or just getting two battery operated single remote and receiver sets. I went with this one as it was the more economical option, but I’ve regretted it. The issue that I have run into with this set is that having it plugged in all the time means that it gets in the way. I wish I had the option to put the receiver somewhere truly out of the way. Additionally, the chimes aren’t always remembered. When the receiver was unplugged to move it from one outlet to another after initial programming, it forgot the chimes that were programmed for both doorbells. Although, later, the receiver was bumped and knocked out of the outlet and when plugged back in, it still remembered the chimes. A final time, the power went out for over an hour and when it came back on, the chimes were still remembered. So it seems to be fairly hit or miss. Another consideration is that when the power goes out, your doorbell won’t work. While this is true of wired doorbells too, the battery powered options don’t have this concern. If you live in an area where you have common power outages you probably want to consider looking elsewhere if you plan on having visitors during storms.

One final note, is that after having these up for over a month, one of the remotes has begun to yellow slightly. This particular remote gets full sun for about half of the day and has been rained on an awful lot. I’m not too upset about it considering the conditions that it sits in, but it’s something to keep in mind. The other remote, which is placed on a door that’s covered by a roof, hasn’t yellowed at all.

Overall, I would recommend this wireless doorbell set as a great, affordable option that doesn’t draw too much attention to itself. If you’re not on a strict budget or if you live in a home with limited outlets, I would recommend spending a little more for the battery powered option.
Images in this review
Customer image Customer image
Customer imageCustomer image
17 people found this helpful
Report
Reviewed in the United States on February 28, 2024
Color: 2 Transmitters BlackVerified Purchase
Reviewed in the United States on February 17, 2024
Color: 2 Receivers WhiteVerified Purchase
Reviewed in the United States on February 20, 2024
Color: 2 Receivers WhiteVerified Purchase
Reviewed in the United States on August 12, 2023
Color: 2 Receivers BlackVerified Purchase
2 people found this helpful
Report

Top reviews from other countries

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Amanda Kiczma
5.0 out of 5 stars Works Well!
Reviewed in Canada on May 1, 2023
Color: 2 Transmitters BlackVerified Purchase
Hervey Navarro
5.0 out of 5 stars Excelente timbre inalámbrico, estético, funcional y tiene excelente alcance.
Reviewed in Mexico on December 23, 2022
Color: 2 Receivers BlackVerified Purchase
Amazon Customer
5.0 out of 5 stars Funciona muy bien
Reviewed in Mexico on December 15, 2022
Color: 2 Receivers BlackVerified Purchase
Margaret
5.0 out of 5 stars Great Doorbell
Reviewed in Canada on September 20, 2021
Color: 2 Receivers BlackVerified Purchase
Brad
5.0 out of 5 stars Perfect Wireless Doorbell
Reviewed in Canada on September 15, 2021
Color: 2 Transmitters BlackVerified Purchase