Is this compatible with thd avantek db-21?

Mini doorbell receiver can only be paired with mini doorbell set.

Where can i find the specific instructions for pairing this add on receiver to the wireless doorbell, avantek d-3w?

Please the volume button and hold until the light flashes red and you are done!!

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Description

🔔 Upgrade your doorbell game—hear it, see it, own it!

SMART MEMORY RECALL - Receiver remembers your last melody and volume settings—even after power outages—no reset needed.
VISUAL ALERT BACKUP - Flashing light notification works even when volume is muted, perfect for hearing-impaired or quiet zones.
POWERFUL CLEAR ALERTS - 115 dB max volume with a crisp 29mm stereo speaker ensures you never miss a visitor—even in noisy environments.
SEAMLESS SYSTEM EXPANSION - Effortlessly add unlimited receivers to your AVANTEK doorbell setup for full-home coverage.
CUSTOMIZABLE CHIME EXPERIENCE - Choose from 52 unique melodies and 5 volume levels to match your style and space.

The AVANTEK Mini Doorbell Add-on Plug-in Receiver (CR-1) is a compact, black receiver designed to expand your AVANTEK doorbell system with unlimited receivers and up to 2 transmitters. It delivers powerful 115 dB alerts through a rich 29mm stereo speaker, offers 52 chime options with adjustable volume, and features a memory function that retains your settings after power loss. Visual flashing alerts ensure you never miss a visitor, making it ideal for comprehensive home coverage and accessibility.

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