Yocan Technology Co, Ltd. is a leading manufacturer in China, while Yocan USA is a distributor of their products in the USA. Stringent quality control measures are used through every step of production. All products must pass the CE, RoHS, and FCC certifications before receiving Yocan’s quality guarantee.Yocan Trio 3-in-1 Pod System was designed to be used with a variety of extracts. Instead of using just one extract, the Trio gives you the option to use three. This is like getting three vaporizers for the price of one. In terms of the pods, the design of the Trio is similar to the Yocan Evolve 2.0. With its leak-proof design and sealed bottom compartment, it’s more travel worthy than ever. In terms of airflow, the Trio offers an advanced design which provides the most balanced airflow for the pods. The device allows just enough air on the pods to produce the most balanced flavor and vapor production.