Avantek DB-21 Wireless Doorbell Review

Welcome to our wireless doorbell review of the Avantek DB-21. Does it score high enough to make it onto our list of top-rated wireless doorbells?

Here, you can find details on what you will find in the kit, what kind of volume levels to expect, whether or not it is waterproof, and details about the warranty offered…amongst other things!

Clearly, this is a very nice-looking wireless doorbell. It has some great features, including a memory function (it remembers your preferences after a power cut), a 40mm stereo speaker, and a very long range!

In terms of volume, it is one of the loudest wireless doorbells we have heard! If you do not like the volume, turn it off and let the LED alert you to visitors. This is a fantastic wireless doorbell for deaf people or those who are hard of hearing.

I also want to give a special mention of the push-button! When pressed, it lights up green to give the visitor some assurance that the button is working.

The Avantek DB-21 wireless doorbell really is an excellent, top-rated wireless doorbell!

AVANTEK DB-21 Waterproof Wireless Doorbell Review – Details

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What You Get In The Kit

  • 2 × Transmitter (battery included)
  • 1 × Plug-in receiver
  • 2 × Adhesive tape
  • 1 × Key
  • 4 × Screw
  • 4 × Anchor
  • 1 × User manual


You need to consider if you need to add another chime to your wireless doorbell kit because this option does not have the ability to have additional receivers.


The advertised range for this wireless doorbell is 1300 feet (400 meters), but you must remember that this distance is unobstructed.

It is likely to have a working range of around 50%, depending on the objects you have between the push button and the chime.

The signal can be affected by various objects, including walls, cables, and other electrical items.


There are 52 chimes (some of the choices are bizarre!) and 5 volume levels. You can adjust the volume from 0 to 115 dB.

It is one of the loudest available, so you are sure to hear all visitors to your home with this option!

You can also set a different tone for each transmitter, which means you know which button has been pressed just by the chime!

Weather Proof

This Avantek wireless doorbell is rated IP55 against water and dust.

IP55 means that it is protected against low-pressure water jets from any direction, which basically means you can use it out in the rain without fear of it breaking!

In terms of the operating temperature, the Avantek wireless doorbell will operate within the ranges of -20 to 60. Again, that is plenty for the vast majority of cases.


The installation of many wireless doorbells is easy. You can either screw them in or use the adhesive strips that are part of the wireless doorbell kit for the push buttons.

The Avantek does have self-adhesive pads to stick the push button onto the surface, which is a great option if you do not want to drill.

I prefer, where possible, to screw them in, just because I don’t trust the adhesive when the rain comes down!


Avantek supplies all products with a 12-month warranty and a 30-day money-back guarantee, including this wireless doorbell!

The support is excellent! You can contact the team at support@claybox.com, and there is a 24-hour response time for all queries.

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The Avantek wireless doorbell is a fantastic option if you want a waterproof and extremely loud solution if you need it to be!

If the volume is not for you, turn it off and let the LED alert you to a visitor! That also makes it a fantastic wireless doorbell for deaf people or hard of hearing.

This Avantek wireless doorbell is one of the best waterproof doorbells and is also an excellent choice for a long-range solution if you need it.

Have you got the Avantek DB-21 wireless doorbell? If you have, what do you think of it? I am very interested in your feedback, so please leave a comment below or contact us!

Good luck!

Avantek DB-21 Wireless Doorbell
  • 97%
    Melodies - 97%
  • 87%
    Warranty - 87%
  • 95%
    Waterproof - 95%
  • 97%
    Volume - 97%
  • 90%
    Range - 90%


The Avantek DB-21 is a small but powerful wireless doorbell! IF you are looking for a long-range, loud wireless doorbell, then look no further!

About Allwirelesshome.com

In one sentence: We are a team of individuals who collectively hate drilling holes and running wires throughout our homes! To combat this hatred towards wires, we only deal with wireless items for your home. From wireless doorbells to wireless security systems, there are products out there that are easy to install, easy to set up, and above all, there are no wires! Well, there might be some wires, mostly for power!

2 thoughts on “Avantek DB-21 Wireless Doorbell Review”

    • Hi

      Happy to help, please let me know what you need to do and I will contact the manufacturer.

      Kind regards


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