Welcome Door Chime 16-Melody Wireless Door Bell (3 x AAA)
Color: White - PVC material - Can speak "Welcome" in Chinese ("Huan Ying Guang Lin") - 16-melody selectable - IR sensitive range: 12m - Detecting angle: 60 degrees / 110 degrees - Turn on delay: 10 sec - Alarm level: 95dB - Powered by 3 x AAA batteries (not included) - Can also use external 6V power supply - Comes with 2pcs installation screws