Experience complete satisfaction with the AVANTEK wireless doorbell, FCC, CE, and RoHS certified. Our dedicated customer support team is always ready to assist you.
Enjoy a truly simple setup with two included transmitters. Easily expand your system by adding more AVANTEK plug-in receivers for whole-home coverage. Installation is effortless: just mount the transmitter using the provided screws, anchors, key, or two double-sided adhesive pads—no wiring needed.
Hear the bell from up to 1,000 feet away. The clear signal won’t interfere with other household devices, so you’ll always know when a visitor arrives, whether you’re upstairs, in the garden, or several rooms away.
Customize your experience with 52 elegant melodies and five volume levels—up to a clear 115 dB. A rich stereo speaker delivers crisp sound, and you can set a unique tone for each entrance, so you always know which doorbell is ringing.
Built for high performance, the transmitter features ultra-low power consumption and a long-life lithium battery designed to last up to three years. With an IP55 rating, it is both dustproof and waterproof, operating reliably from -4°F to 140°F through all seasons.
A convenient memory function retains your chosen melody and volume setting, even after a power outage. No resetting required—just a seamless, user-friendly experience every time.
AVANTEK CB-21 Wireless Doorbell Kit
This kit includes two powerful black transmitters and a plug-in receiver for complete wireless coverage. The modern, square design is crafted from durable ABS plastic and features a low-profile thickness of just 0.6 inches for a discreet look.
With a brilliant LED and an incredibly loud 115 dB alarm, you’ll never miss a visitor. It offers flexible installation with both self-adhesive tape and screw-in hardware (included). Powered by both AC and battery, the receiver uses a standard US plug. The two transmitters are powered by long-lasting 3V CR2 lithium batteries (not included), which provide an average battery life of up to three years.