Zmart Technology Co,.ltd is professional e cig manufacturer located in Shenzhen.With more than 4 years manufacture experience in domestic market, professional R&D team, quick updating products, over 100 workers, selected raw material, high level quality control, half year warranty on battery devices and RDAs and 3 month for tanks and accessories, with all these strengths, we are ready to serve the whole world. We aware that we have long way to go to be best e cig producer, but we are willing to be most honest and responsible manufacturer from today, and since the day we were built.