sensor door bell 1,three kinds of cartoon, bear,mikey,frog 2,Optical distance:1 to ... 10 metres 3,voice can be any languages sensor door bell ... 8.5KG use AA battery*3 Three kinds of cartoon bear,mikey,frog。It is so cute and zeal ... and ease atmosphere.The new style multi-purpose door bell has wirless light-operated ,automatic identification,Optical distance ...