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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

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

Q: I want to use this in my classroom to signal different things. Can you program each remote to different tones from each other?

Yes each remote can have different sounds

Q: Is there a doorbell or device that can change the sounds from the remote itself??

I'm not sure I understand your question. There are two (well three actually) parts to this doorbell (2 bells that go outside your home, one on the front door and one on the back door if you want to use both. You don't have to use both if you don't want to....and then there's the remote that gets plugged into an outlet inside your home. The remote has about 50 different sounds (rings, noises and tunes) which you can program on the remote (more choices than I will ever need). If you do use both doorbells they can each be programmed for a different sound or tune so that if one is on your front door and one on your back door, you'll know by the sound which door your caller is at. I only use one doorbell. It was pretty easy to set up once I removed the plastic tab that covered the battery (they don't mention that in the instructions). I spent allot of time trying to program it but it won't work until that plastic tab is removed that covers the battery. All in all I am pleased with this purchase and it works nicely....loud and clear.

Q: I need 2 simple tones,1 for each door. Are these tones in the beginning of choices or scattered throughout the list i would hate scaning through all ?

If I remember correctly (and sometimes I don't), the tones are into group types. First was the simple everyday tones, then noises (like a dog barking) and then melodies I'm not sure of the order they are in. I did listen to all of them because it was fun and I wanted to hear them all so I could select the two I liked best. I did select 2 different melodies so I could tell by the melody if someone was at the front door or the back door.

Q: Can the receiver be put behind a chest?

yes, as long as you can plug it in to an outlet close enough to the house entrance it should work

Product ID: 102514644

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💧IP55 waterproof & dustproof

📶1000 ft wireless range

🔊115 dB CD-quality sound

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Description

🔔 Elevate your entryway with sound and style—because first impressions deserve a flawless ring!

SMART MEMORY FUNCTION - Remembers your last melody and volume after power outages—set it once, enjoy hassle-free forever.
WEATHERPROOF DURABILITY - Built to withstand rain, dust, and extreme temperatures from -4°F to 140°F—reliable all year round.
SEAMLESS LONG RANGE CONNECTIVITY - Stay connected up to 1000 feet away—never miss a visitor, no matter where you are in your home.
CUSTOMIZABLE ALERTS FOR EVERY DOOR - Choose from 52 melodies and assign unique tones to each transmitter for instant recognition.
EFFORTLESS INSTALLATION EXPANSION - No wiring needed—mount with screws or adhesive, plus add extra receivers to cover every corner.

The AVANTEK CB-21 Wireless Doorbell offers a robust 1000-foot wireless range with 2 transmitters featuring 52 customizable melodies and 5 volume levels up to 115 dB. Its IP55 rating ensures waterproof and dustproof durability, while ultra-low power consumption lithium batteries provide up to 3 years of use. Easy to install with included hardware and adhesive, it supports multiple receivers for extended coverage and remembers your settings after power outages for seamless operation.

Specifications

Manufacturer	AVANTEK
Part Number	CB-21
Item Weight	6.4 ounces
Product Dimensions	2.8 x 0.6 x 3.1 inches
Batteries	2 CR2 batteries required.
Is Discontinued By Manufacturer	No
Color	2 Transmitters 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	1 × Plug-in receiver, 1 × User manual, 2 × Adhesive tape, 1 × Screwdriver, 4 × Screw, 4 × Anchor, 2 × Transmitter
Batteries Included?	No
Batteries Required?	No
Battery Cell Type	Lithium Manganese Dioxide
Average Battery Life	3 years

Have a Question? See What Others Asked

I want to use this in my classroom to signal different things. Can you program each remote to different tones from each other?

Is there a doorbell or device that can change the sounds from the remote itself??

I need 2 simple tones,1 for each door. Are these tones in the beginning of choices or scattered throughout the list i would hate scaning through all ?

Can the receiver be put behind a chest?

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