Methods, systems, apparatuses, and products are disclosed for locating concealed objects by discharging the contents of an aerosol container. The bath toy arrangement is provided with first and second sheet elements each formed of ethylene vinyl acetate foam having a thickness of approximately between 1 mm and 10 mm. A bounding box is determined for the vehicle based upon the extracted digital representation for each digital representation of the vehicle and at least one dimension of the vehicle is estimated based upon the determined bounding box. A spacer is formed on the infrared light emitting layer, and the width of the spacer is widened as it approaches from the bottom to top of the spacer. The three protocol layers of the present invention is designed according to a pairing mechanism such that the wireless product using the pairing mechanism can use the simplified protocol of the present invention instead of the conventional redundant communication protocol model.