821 digital wireless remote control doorbell digital remote control doorbell genuine home doorbell

Wireless and easy-to-install system, no need to drill holes or run wires, avoiding the hassle and cost of wiring. It does not affect the beauty of the decoration.

Built-in digital strong anti-interference system, one in ten thousand plus password decoding, to avoid user interference and external signals, avoid the trouble of doorbell false ringing. Remote control over a distance of 100 meters. Meet the needs of various residential and high-rise buildings. With European-style, elegant and compact streamlined design, it adds color to your furniture. The sound is loud and melodic, and the sound quality is certified by music masters, ensuring high quality and confidence. The power consumption is extremely low, the button battery can last for 2 years (calculated by 20 times a day), and it does not consume electricity when not pressed, with a static power consumption of less than 200UA for the doorbell. It is particularly suitable for home, office buildings, hotel rooms, buildings, dormitories, factories and other places, so you will not miss any visitors. Various sounds (models) are available for choice, you can choose different models according to your needs. The doorbell and button need to be paired with the same coding, please refer to the computer barcode on the shell. The button is fixed at the door with screws, glass glue or double-sided foam tape, and ensure that it cannot be too close to metal, to prevent rain from getting wet. If the button cannot be used normally after a period of time (if the button is soaked in water, please use a hot air dryer), please replace the button battery.