SMOK is the trademark of Shenzhen IVPS Technology Co.,Ltd or it subsidiaries in the U.S and/or other countries. Please keep the anti-counterfeiting codes on the external package. After-sales customer service is available only with these anti-counterfeiting codes as well as proofs of product authenticity. DO NOT use if pregnant, breast feeding, have liver or heart disease, high blood pressure. This product is intended for purchase or use by persons of legal age or older.