1. The unique design of graded power lamp on the fuselage can display the remaining power and charging progress at any time, thus alleviating users' anxiety about unknown power.
2. At the same time, technical breakthroughs have been made in charging speed, battery capacity, oil leakage prevention technology and material technology. It is understood that as another milestone in the research and innovation of lil electronic cigarette, a number of patent applications including labyrinth airway have been laid out.