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AVANTEK

AVANTEK Wireless Door Bell, CB-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

    • Based on 3,679 reviews
Condition: New
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$24.99 Why this price?
Holiday Deal · 17% off was $29.99

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This item is eligible for return within 30 days of receipt

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Dec 24
Order within 21 hours and 38 minutes
Available payment plans shown during checkout

Color: Black


Features

  • 100% SATISFACTION: Our AVANTEK wireless doorbell is approved by FCC, CE and RoHS; we provide customer service on our products and we will always do our best to support you.
  • 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

Manufacturer: ‎AVANTEK


Part Number: ‎CB-21


Item Weight: ‎6.4 ounces


Product Dimensions: ‎2.8 x 0.6 x 3.1 inches


Country of Origin: ‎China


Batteries: ‎2 CR2 batteries required.


Is Discontinued By Manufacturer: ‎No


Color: ‎Black


Material: ‎ABS


Shape: ‎Square


Thickness: ‎0.6 Inches


Power Source: ‎AC & Battery


Voltage: ‎3 Volts


Installation Method: ‎Self-Adhesive or Screw-In


Sound Level: ‎115 dB


Type of Bulb: ‎LED


Plug Format: ‎A- US style


Switch Style: ‎Push button


Included Components: ‎2 × Transmitter (2 CR2032 batteries included), 1 × Plug-in receiver, 2 × Adhesive tape, 1 × Screwdriver, 4 × Screw, 4 × Anchor, 1 × User manual


Batteries Included?: ‎No


Batteries Required?: ‎No


Battery Cell Type: ‎Lithium Manganese Dioxide


Average Battery Life: ‎3 years


Date First Available: December 11, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Dec 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • 4 years and still working with the same batteries!
Color: Black
When we moved in, the doorbells did not work and it wasn't going to be a quick fix. I ordered this set because we have a side and front door that both needed a doorbell. You can set the doorbell tone to different sounds so that you know which door has been rung. It has been 4 years and 7 months since we purchased these and they are still working great with out any battery changes. One is more exposed to the elements than they other, but there have been no issues with either. I paid $22.99 and I am extremely pleased with my purchase. I highly recommend. ... show more
Reviewed in the United States on December 2, 2023 by A-Lo
    • Works Great
Color: White
Wow, it worked directly out of packaging. Easy set up and loud volume. I really love it.
Reviewed in the United States on January 11, 2024 by Jeneane
    • Great alternative
Color: Black
Love them.
Reviewed in the United States on January 12, 2024 by Shocked
    • Compact size does not interfere with other outlet
Color: Black
Like the compact size of the receiver as it allows for both the 2nd outlet to be accessed when the receiver is plugged in. The volume settings could be more adjustable - I found it difficult to find a happy medium between too loud and not loud enough. The instructions for pairing multiple transmitters and receivers (in my case, 2 transmitters and 2 receivers) SHOULD be written better/clearer/more detailed. It was difficult to understand how to get both receivers to ring at the same time with different tones for the front door transmitter and the back door transmitter...but after some trial/ and error I finally got it programmed. Way too many weird ringtones - would prefer more normal doorbell tones to choose from but I landed on two that worked for me. So far, so good - now to see how well the transmitters hold up outside - then I can rate the "weatherproof" aspect. ... show more
Reviewed in the United States on October 15, 2023 by les
    • Outside doorbell
Color: White
Easy to install and works great. Outside in the weather and no problems
Reviewed in the United States on December 29, 2023 by James A. Ott
    • Very convenient
Color: White
Easy to install, works great. The old one that I had did not have the picture of a bell on the button, so people didn't always realize I had a doorbell. They see this one, so they actually ring it instead of knocking. I recommend it.
Reviewed in the United States on December 4, 2023 by S Kilson
    • Ding Dong Done Easy
Color: Black
Loved how easy it was to install. I just wish I had a list of the tunes in the order they were programmed.
Reviewed in the United States on December 14, 2023 by R. Nelson
    • Best Doorbell dual buttons
Color: Black
Our driveway is 572 ft. long. We placed one doorbell on top of the iron gate keypad People can ring that doorbell, with its unique tune, to announce their present and gate needs opened. GOOD RANGE. Horse farm workers come to house and ring that doorbell with its unique tune and I know to go to door. TWO UNIQUE DOORBELLS are efficient. ... show more
Reviewed in the United States on November 20, 2023 by BeckySheryak

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