--- product_id: 98197740 title: "Wireless Door Bell, CW-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" brand: "avantek" price: "€ 50.63" currency: EUR in_stock: true reviews_count: 11 category: "Avantek" url: https://www.desertcart.com.cy/products/98197740-wireless-door-bell-cw-21-mini-waterproof-wireless-doorbell-operating store_origin: CY region: Cyprus --- # IP55 waterproof & dustproof 1000+ ft wireless range 52 melodies & 115 dB max volume Wireless Door Bell, CW-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 **Brand:** avantek **Price:** € 50.63 **Availability:** ✅ In Stock ## Summary > 🔔 Elevate your entryway with sound that travels and style that lasts! ## Quick Answers - **What is this?** Wireless Door Bell, CW-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 by avantek - **How much does it cost?** € 50.63 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/98197740-wireless-door-bell-cw-21-mini-waterproof-wireless-doorbell-operating) ## 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 - • **Personalized Alerts:** Choose from 52 crystal-clear melodies and assign unique tones to each button for instant recognition. - • **Smart Memory Function:** Retains your last melody and volume settings after power outages—set it and forget it. - • **Unmatched Wireless Reach:** Stay connected up to 1000 feet away—never miss a visitor, even across floors or large homes. - • **Built to Brave the Elements:** IP55-rated waterproof and dustproof design keeps your doorbell ringing rain or shine. - • **Effortless Setup, Zero Wiring:** Mount transmitters anywhere with included screws or adhesive pads—no electrician needed. ## Overview The AVANTEK CW-21 Wireless Doorbell offers a robust 1000-foot wireless range with two transmitters capable of distinct tones from 52 melodies. Featuring CD-quality sound at up to 115 dB, it’s designed for easy installation without wiring. Its IP55 waterproof rating and ultra-low power lithium batteries ensure durability and up to 3 years of use. Perfect for modern homes seeking reliable, customizable, and weatherproof doorbell solutions. ## Description AVANTEK Wireless Door Bell, CW-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 - desertcart.com Review: Great product and highly recommend it. - Our doorbell stopped working and this was a great and easy way to replace that. Has several different sound options. Great value for the money and would definitely recommed it. Review: Easy install - Very easy install works perfectly also looks very nice and the volume is good. Would definitely purchase again. ## Features - EASY TO SET UP: 2 transmitters included; can add more AVANTEK RB-1/CR-1 plug-in 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 - 1,000 FT/300 M 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 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07KC1SX1F | | Batteries | 2 CR2 batteries required. | | Batteries Included? | No | | Batteries Required? | No | | Battery Cell Type | Lithium Manganese Dioxide | | Best Sellers Rank | #22,482 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #17 in Door Bell Push Buttons | | Color | 2 Transmitters White | | Customer Reviews | 4.7 4.7 out of 5 stars (9,507) | | Date First Available | January 30, 2019 | | Included Components | 1 × Plug-in receiver, 1 × User manual, 2 × Adhesive tape, 1 × Screwdriver, 4 × Screw, 4 × Anchor, 2 × Transmitter | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 6.4 ounces | | Manufacturer | AVANTEK | | Part Number | CW-21 | | Product Dimensions | 2.8 x 0.6 x 3.1 inches | | Sound Level | 115 Decibels | | Voltage | 3 Volts | ## Images ![Wireless Door Bell, CW-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 - Image 1](https://m.media-amazon.com/images/I/51DuHYGxu2L.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: I want to use this in my classroom to signal different things. Can you program each remote to different tones from each other?** A: Yes each remote can have different sounds **Q: Is there a doorbell or device that can change the sounds from the remote itself??** A: 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 ?** A: 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?** A: yes, as long as you can plug it in to an outlet close enough to the house entrance it should work ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product and highly recommend it. *by C***W on November 16, 2025* Our doorbell stopped working and this was a great and easy way to replace that. Has several different sound options. Great value for the money and would definitely recommed it. ### ⭐⭐⭐⭐⭐ Easy install *by V***M on November 12, 2025* Very easy install works perfectly also looks very nice and the volume is good. Would definitely purchase again. ### ⭐⭐⭐⭐⭐ You'll hear the doorbell ring, promise. *by J***L on April 7, 2023* Incredible sound in terms of quality and decibel. The highest volume can probably be heard from the moon, so if you're hard of hearing or work in a barn a mile away, you'll STILL hear this doorbell on the highest setting. I'm being hyperbolic but only 90%. So many songs and alerts to choose from, it's daunting but fun. Every time I thought I had chosen one I'd click a few more just to hear a few more options then I'd have a new favorite. Some of the sounds are hilariously distinct and something I'd never actually want to use as a doorbell but I'm also half inspired to use the ridiculous ones simply for that reason. Easy to put into place, easy to figure out, aesthetically pleasing, and did I mention it's loud enough to be heard during a demolition derby? It probably is. I got two doorbells so I'm splitting my sounds up - one normal doorbell with a pretty song (I'll probably go with Fur Elise) at one of the lower volumes and then a secret doorbell near the real one but out of sight a bit for people I KNOW and LIKE to ring, that way I'll always know whether it's someone I want to see or someone I wasn't expecting. The friend-doorbell sends a rooster crow sound through the whole neighborhood when it goes off. I laugh everytime. ## Frequently Bought Together - AVANTEK Wireless Door Bell, CW-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 - Energizer CR2032 Batteries for Watches, AirTags, Key Fobs, Small Electronics 4 Count (Pack of 2), CR2032 Battery --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.cy/products/98197740-wireless-door-bell-cw-21-mini-waterproof-wireless-doorbell-operating](https://www.desertcart.com.cy/products/98197740-wireless-door-bell-cw-21-mini-waterproof-wireless-doorbell-operating) --- *Product available on Desertcart Cyprus* *Store origin: CY* *Last updated: 2026-04-26*