Suriora Wireless Welcome Alert Door Bell: Infrared Motion Sensor Alarm Chime with LED -38 Chime Tunes ( 1 Receiver and 1 Sensor)
This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases Receiver size:76*80*33mm PIR Sensor size:80*59*45mm Weight:0.22kg Working voltage of the receiver:110V-240V Working voltage of the PIR sensor:4.5V(3 AAA batteries) Receiver Switch Setting: Music Source: 38 different songs for optional Use the external button “music” to finish. The function of volume adjustment: