sensor door bell/chime 1,three kinds of ... cartoon, bear,mikey,frog 2,Optical distance:1to10 metres 3,voice can be any language sensor door ... bell .sensor door chimenamebear sensor door bellmodelML-002size10.5x5cmmaterialABSpackingOPPQTY120PCS/cartoncarton size66 ... and office.When guests come in closer to the door,it will say“welcome”,thereafter ...