Menon Enterprises is one of the leading names in the field of manufacturing and supplying of Blom-Singer Duckbill Voice. These are 16 Fr. Silicone, one-way slit valve prosthesis made for position in a channel between the trachea and the esophagus for voice restoration following laryngectomy. Made from finest of raw materials, these are very sought after in international market. Our highly sophisticated production unit along with array of extremely professional team helps us achieve these heights.