Anpress NEW Wireless Door Bell Infrared 8m Welcome Guest Alarm Chime Motion Sensor Detector for Shop Home Store 32 Different Melodies for choice (KR-M5 white) ?Multifunctional?-- Intelligent greeting warning doorbell, welcome your guests with beautiful song automatically. ?Motion Detector?-- Door chime trigger by motion, keeps you aware of intruders or visitors anywhere around your home. ?Long Detection Range?-- Light control distance is 4-8 meters.The chime is triggered by detecting the motion of the visitor passed by. ?32 Music Tones?-- 32 different melodies for choice, selector switch to select human voice or different music/sound, music selection button to change the music/sound. ?Applicable Scene?-- Suitable for dwelling houses, tier buildings, multiple apartments, shops, offices, factories and so on.