KERUI Wireless Infrared Welcome Doorbell Chime Kit - 2 Receivers,1 PIR Motion Sensor Alert Detect Security Alarm Greetin

Intelligent greeting warning doorbell, welcome your guests with beautiful song automatically
Door chime trigger by motion, keeps you aware of intruders or visitors anywhere around your home
Light control distance is 2-8 meters.The chime is triggered by detecting the motion of the visitor passed by
Selector switch to select human voice or different music/sound, music selection button to change the music/sound, 32 songs can be choose
Suitable for dwelling houses, tier buildings, multiple apartments, shops, offices, factories and so on