Smart Door Bell has high quality crystal tempered glass panel design which never fade. It comes with blue LED indicator, very distinguished. It has E-start with no sparking contacts. The touch button is used to turn on/off the indoor bell. It's suitable for home, office, hotel, apartment, hospital etc.
Smart Outdoor Bell does not require batteries, no wiring, plug and play, easy to install Built-in 38 music to choose from, 4 sections of volume can be adjusted (including mute). The button is IP44 waterproof, which can effectively prevent the intrusion of rainwater, and can be waterproof. The Transmitter cannot be placed on an iron door because it will interfere with the signal. It's suitable for home, office, hotel, apartment, hospital etc.