Joan doorbell wireless home ultra-long distance one for two electronic door bell remote control intelligent elderly patient caller

The ear box has a very simple and fashionable appearance design. the high-definition led light source of this box box box box box box is very high-definition. whether it is its own ringtone, silent broadcast, or intelligent human-machine interconnection design, there are many different the operation touch screen design, the buttons have automatic screen off function, and the considerate simple design can meet different decoration styles.