... ,battery operated,factory offer,nice price quality motion sensor chime,sensor alarm,sensor doorbell,door chime,message recordable,battery operated, ... ,nice price quality Specifications:Sensor Distance:3-6M;Sensor Detecting Angle: 10 degrees for Light Sensor;Ring Tone:Recordable for ... ,American,Asia,Ocean Market Request;Direct Factory Supply,with superior quality and flexible price offer;Good feedback ...