AVANTEK DB-21 Wireless Doorbell with 1300 Feet Range, 56 Melodies & Waterproof Design
🎵 56 Melodies & 5 Volume Levels - Who says doorbells have to be boring? Pick from 56 tunes to greet your guests (or scare off the squirrels). And with volume that goes from 'whisper' to 'rock concert' (okay, 115 dB), you'll never miss a visitor—even if you're in the shower.
🌧️ Weatherproof Design - Rain, snow, or a dust storm that would make a tumbleweed jealous? No problem. This doorbell's got an IP55 rating, meaning it laughs in the face of bad weather.
🔋 Long Battery Life - Forget about changing batteries every few months. The built-in lithium battery is the marathon runner of doorbells, keeping up the chimes for up to 3 years.
🏠 Easy Installation - If you can use a screwdriver or peel off a sticker, you're overqualified to install this. Comes with screws and adhesive pads because we know not everyone's handy (or wants to be).
💡 Memory Function - Power outage? No biggie. This doorbell remembers your last melody and volume setting, so it's like nothing ever happened. It's the elephant of doorbells.
🔊 Ultra-Long Range - With a 1300 feet range, you could be at the bottom of your garden, in the attic, or hiding in the shed (we won't judge), and you'll still hear it. Maybe even your neighbors will.
General specs
- Brand: AVANTEK
- Model: DB-21
- Seller: Retailer
- ID: B077MD5HBV
- Melodies: 56
- Battery Life: 3 Years
- Power Source: AC plug-in + CR2032 battery
- Volume Levels: 5
- Wireless Range: 1300 Feet
- Waterproof Rating: IP55
- Included Components: 2 × Transmitter, 1 × Plug-in receiver, 2 × Adhesive tape, 1 × Screwdriver, 4 × Screw, 4 × Anchor, 1 × User manual
- First listed by seller: March 24, 2025
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
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| Brand | AVANTEK | AVANTEK | PHYSEN | TECKNET | AVANTEK | BO YING |
| Model | DB-21 | CB-11 | Dettelin | HDB01806 | BA-11 | A-808 |
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| Price | €17.47 | €11.28 | €39.33 | €18.48 | €12.09 | €8.73 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 15, 2026 | May 16, 2026 | May 13, 2026 | May 9, 2026 | May 20, 2026 | Mar 21, 2026 |
| Power Source | AC plug-in + CR2032 battery | AC & Battery-Powered | Self powered | |||
| Included Components | 2 × Transmitter, 1 × Plug-in receiver, 2 × Adhesive tape, 1 × Screwdriver, 4 × Screw, 4 × Anchor, 1 × User manual | 2 remote transmitters and 4 plug-in smart doorbell receivers, double sided mounting tape, anchors, screws and A23 battery included. | Doorbell Push Button*1, Doorbell Receiver*1 | |||
| Voltage | 3 Volts | 120 Volts (AC) | 110 Volts | |||
| Item Weight | 5 ounces | 7.8 ounces | 4.6 ounces | |||
| Part Number | LD-CB-11-A | AUB09NZXGRB1 | A-808 | |||
| manufacturer | AVANTEK | TECKNET | BO YING | |||
| Country of Origin | China | China | China | |||
| Product Dimensions | 2.8 x 0.6 x 3.1 inches | 4.53 x 3.43 x 2.76 inches | 77.17 x 26.77 x 3.94 inches | |||
AVANTEK DB-21
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