1.With LED display, show battery volume and mouthfuls.
2.Lower cost than traditional smoking.
3.Green products, smoke anytime and anywhere, not banned.
4.Similar to traditional cigarette.
5.Won't stain teeth or damage skin.
6.No harm of first or second smoke.
7.No tar, ash, butts, carbon monoxide, cyanide, lead, arsenic or other carcinogenic.
8.Easy to use, it is very convenient(do not require matches, lighters or ignition)