Wireless Door Bell Alarm System Doorbell Welcome Intelligent Infrared Sensing

Feature Infrared motion sensor Imported infrared motion sensor with 4 5m control range much more accurate With 38 chord music and 3 volumes control You can adjust it according to your condition Wire free installation Never worry about the disorderly wire affecting the appearance of your room Exquisite design Simple appearance and comfortable luster fit all kinds of decorative style well Ideal for hotel home store office villa and anywhere you want to be alerted to motion Specifications Color WhiteInduction angle 120Sensing range 4 5mShell material PlasticPower supply DC5V 3 x AAA Battery NOT Included Application Hotel home store office supermarket etc Button function 1 Three gear volume adjustment 2 ON OFF 3 Mode Mode1 38 chord music switching mode 2 fixed welcome voice mode 3 fixed alarm tone Package Included 1 x Wireless Door Bell1 x Accessories Bag1 x User ManualDetail Pictures