Product Feature
-Home Security Alarm System: Doorbell Kit,PIR Detector*1
-Doorbell has 30 melodies
-Doorbell alarms when a person active the PIR Detector.
-Doorbell receiver power supply:AC110-230V
-Doorbell receiver plug type:EU/US
-Doorbell push button Battery: 1*3V, CR2032 (included)
-PIR Detector Battery:2*AAA (not included)
-Approval: CE&RoHS
-Radio frequency: 433.92MHz
