sensor door bell 1,three kinds of cartoon, bear,mikey,frog 2,Optical ... 10 metres 3,voice can be any languages sensor door bell namebear sensor door bellmodelML-002size10.5x5cmmaterialABSpackingOPPQTY120PCS/cartoncarton size66*37*37CMG ... respected,and ease atmosphere.The new style multi-purpose door bell has wirless light-operated ,automatic identification,Optical distance is 1 ...