Two-Way Intercom Doorbell, Adjustable Wireless Intercom Volume and Ringtone, Loud and Clear Voice Home Intercom Chime - Silver

Intercom Doorbell - The doorbell horn is loud, the volume is adjustable, and the ringtone is customizable. The intercom sound quality is clear, and it can be used for mobile intercoms. Strong Signal - The doorbell kit uses a universal frequency, providing a long signal transmission distance. In open areas, the maximum signal transmission distance can reach 300 meters. Code Pairing - Thanks to the code pairing function, one outdoor doorbell can be used for two different indoor doorbells without interference. There is no interference with their operation. Exquisite Doorbell Kit - The doorbell kit is exquisite, compact, attractive, and efficient. It is easy to install and can be directly attached to the wall with adhesive. Power Source - The outdoor unit is easy to install and remove the battery. It uses 4 AAA batteries (not included), and the indoor unit is used with an external USB data cable.