---
product_id: 97370942
title: "AVANTEK Mini IP55 Doorbell, CB-21"
brand: "avantek"
price: "€ 49.63"
currency: EUR
in_stock: null
reviews_count: 12
category: "Avantek"
url: https://www.desertcart.com.cy/products/97370942-avantek-mini-ip55-doorbell-cb-21
store_origin: CY
region: Cyprus
---

# IP55 waterproof & dustproof 1000 ft wireless range 115 dB max volume, 52 melodies AVANTEK Mini IP55 Doorbell, CB-21

**Brand:** avantek
**Price:** € 49.63
**Availability:** ❌ Out of Stock

## Summary

> 🔔 Elevate your entryway with smart, stylish chimes that keep you in the loop—rain or shine!

## Quick Answers

- **What is this?** AVANTEK Mini IP55 Doorbell, CB-21 by avantek
- **How much does it cost?** € 49.63 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/97370942-avantek-mini-ip55-doorbell-cb-21)

## Best For

- avantek enthusiasts

## Why This Product

- Trusted avantek brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Weatherproof Reliability:** IP55-rated durability means your doorbell braves rain, dust, and extreme temps without skipping a beat.
- • **Unmatched Wireless Freedom:** Stay connected up to 1000 ft away—never miss a visitor, no matter where you are in your home.
- • **Effortless Setup & Expansion:** Plug-and-play design with included mounting accessories; add more receivers to cover every corner seamlessly.
- • **Customizable Sound Experience:** Choose from 52 crisp melodies and 5 volume levels, including a powerful 115 dB max to suit every vibe.
- • **Long-Lasting Power Efficiency:** Ultra-low power transmitter powered by CR2032 batteries with up to 3 years lifespan—set it and forget it.

## Overview

The AVANTEK Wireless Doorbell CB-21 offers a robust 1000 ft wireless range and IP55 waterproof rating, ensuring reliable performance in all weather. Featuring 52 melodies and 5 volume levels up to 115 dB, it allows personalized alerts for multiple entrances. With ultra-low power consumption and a 3-year battery life, plus easy no-wiring installation and expandable receivers, it’s the perfect blend of convenience and cutting-edge tech for modern homes.

## Description

AVANTEK Wireless Doorbells, 1000 ft Range IP55 Waterproof Cordless Door Chime Kit with 2 Push Buttons, 52 Melodies, 5 Volume Levels, LED Flash, CB-21, Suitable for Front Back Doors Entrance Ways : desertcart.co.uk: DIY & Tools

Review: Excellent piece of kit. Just plug and play - Excellent piece of kit. Just plug and play. Still working great on original battery after two years of use. Range is excellent too.
Review: Great and affordable - A simple piece of kit, reasonably priced and looks dead smart. The plug in part is nice and thin so actually was able to be plugged in behind a unit making it invisible but still easily heard. The push doorbell part is smart, fits nicely and the large adhesive pad looks like it will not be moved. Volume control is great, can be heard all over the house quite easily. The only slight niggle is having to wade through the sheer number of chimes to find something which sounds like a doorbell - I mean come on, how many people really need their home doorbell to play happy birthday or an unimaginable number of Christmas tunes! Sometimes it's ok to make things simple!

## Features

- 【HIGH PERFORMANCE 】Our AVANTEK doorbell is approved by CE, FCC and RoHS. High performance transmitter with ultra-low power consumption, uses a CR2032 lithium battery that boasts 3-year maximum lifespan
- 【TAILOR YOUR TRANSMITTER】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
- 【300 M/1,000 FT ULTRA LONG WIRELESS RANGE】Will not interfere with other equipment in your home or those of your neighbours; ensures you will never miss a visitor, even if you are a few rooms away or on another floor
- 【HIGH PERFORMANCE】The transmitter has ultra-low power consumption; uses 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
- 【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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KG9T886 |
| Batteries | 2 CR2 batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Best Sellers Rank | 12,831 in DIY & Tools ( See Top 100 in DIY & Tools ) 64 in Door Bell Kits |
| Brand | AVANTEK |
| Certification | CE, FCC and RoHS |
| Colour | Mini (Black) |
| Customer Reviews | 4.5 4.5 out of 5 stars (5,159) |
| Date First Available | 8 Jan. 2019 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Guaranteed software updates until | unknown |
| Included Components | 2 × Transmitters (CR2032 batteries included), 1 × Plug-in receiver, 2 × Adhesive tapes, 1 × Screwdriver, 4 × Screws, 4 × Anchors, 1 × User manual |
| Item Weight | 190 g |
| Item model number | CB-21 |
| Manufacturer | AVANTEK |
| Material | ABS |
| Package Dimensions | 13.2 x 9.4 x 6 cm; 190 g |
| Part Number | CB-21 |
| Power and Plug Description | AC & Battery |
| Special features | ① Wireless Doorbell ② 2 Remote Buttons Can Have Different Tones, Suitable for Front Back Doors Entrance Ways ③ IP55 Waterproof Dustproof ④ 1000 Feet/300 M Operating Range ⑤ 5 Adjustable Volume Levels with 52 Chimes ⑥ Mini Sized ⑦ Electrical Doorbell |
| Specific Uses | 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/D-3C/DB-21/DB-11/DW-21 (For orders purchased before 2021, it is best to contact us to inquire whether they can be paired.) |
| Voltage | 3 Volts |

## Images

![AVANTEK Mini IP55 Doorbell, CB-21 - Image 1](https://m.media-amazon.com/images/I/31Nyr1kBnJL.jpg)
![AVANTEK Mini IP55 Doorbell, CB-21 - Image 2](https://m.media-amazon.com/images/I/41fIMkArjdL.jpg)
![AVANTEK Mini IP55 Doorbell, CB-21 - Image 3](https://m.media-amazon.com/images/I/41s+i0+VDwL.jpg)
![AVANTEK Mini IP55 Doorbell, CB-21 - Image 4](https://m.media-amazon.com/images/I/51PWpTocJ8L.jpg)
![AVANTEK Mini IP55 Doorbell, CB-21 - Image 5](https://m.media-amazon.com/images/I/51S6dxhiSML.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Hi. How do you give the two transmitters different rings?**
A: After searching all over I found out how to do this, to make it easier get someone to help you if you've got two transmitters (front and backdoor doorbell buttons let's say) already attached to the walls.
1st. If you've got multiple receivers make sure you can hear them clearly, I plugged mine all in in the same room I was in.
2nd. Ask the other person to press the first door doorbell every two seconds whilst you remain in the room with the receivers so they all chime at the same time, use the chime select button on the first receiver to pick the chime straight after the other person presses the doorbell, do this until you get to the chime you want. At this point one receiver will be chiming the chime you want and the others won't, repeat this process on each receiver until all of them are chiming the same chime. All the receivers are now programmed to chime that chime for that doorbell.
3rd. Ask the other person to go to the second doorbell button and repeat the whole of step 2 again but this time select the different chime you want to use for that doorbell.
4th. Now you test each doorbell, each one should chime a different chime from the same receivers.
5th. Be happy you can tell which doorbell is pressed from the chime that chimes!

**Q: We live in a country area with quite frequent power cuts and blips.  Do the units have to be re-paired every time there is a power cut or blip?**
A: No, dont have to be re-paired

**Q: the doorbell rings when landline rings how can I stop this happening**
A: I'm taking it your landline is cordless phone so I'm guessing it must be set on a frequently near to the doorbell frequency hence the interference I don't think there is a way to get round it it as pressing the doorbell is sending a signal frequency to the receiver your  phone must be doing the same do you have have two hand units have you tried unplugging the single one without the base unit the one just with the charger as was wondering if the transmitter from the base unit to the other phone to meet that one ring is crossing the doorbell line hope you get it sorted

**Q: Will it work with Blink video doorbell ?**
A: Dear Customer,
No, it can't work with Blink video doorbell, it just work with AVANTEK Doorbell.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent piece of kit. Just plug and play
*by M***K on 3 December 2025*

Excellent piece of kit. Just plug and play. Still working great on original battery after two years of use. Range is excellent too.

### ⭐⭐⭐⭐⭐ Great and affordable
*by T***Y on 13 April 2024*

A simple piece of kit, reasonably priced and looks dead smart. The plug in part is nice and thin so actually was able to be plugged in behind a unit making it invisible but still easily heard. The push doorbell part is smart, fits nicely and the large adhesive pad looks like it will not be moved. Volume control is great, can be heard all over the house quite easily. The only slight niggle is having to wade through the sheer number of chimes to find something which sounds like a doorbell - I mean come on, how many people really need their home doorbell to play happy birthday or an unimaginable number of Christmas tunes! Sometimes it's ok to make things simple!

### ⭐⭐⭐⭐ Great bell, easy to install, small minor caveat
*by A***A on 20 September 2021*

Great bell , works as expected, easy to install and volume is rather loud; extensive choice of chimes/songs, mainly making the kids laugh (we've put the receivers out of reach 😅 ). Small caveat, the ring around the bell button and the bell icon on the actual button and receivers does not light up (contrary to what the pictures in the description might suggest). I thought the blue circle would be visible in the dark so visitors could find the bell more easily, but that is not the case.

## Frequently Bought Together

- AVANTEK Wireless Doorbells, 1000 ft Range IP55 Waterproof Cordless Door Chime Kit with 2 Push Buttons, 52 Melodies, 5 Volume Levels, LED Flash, CB-21, Suitable for Front Back Doors Entrance Ways
- MASTER LOCK Key Safe Wall Mounted, Medium 85 x 119 x 36 mm, Outdoor, Mounting Kit, for Home Office Industries Vehicles, Black & Silver

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-23*