1) Green product, healthy product, no nicotine.
2) Protable and low cost

 Each cartridge keeps: 400puffs,equal to 2 packages real cigarette.

 Battery capacity : 250mAH,3.7V .

 Times of charging up: 500times .                         

 Time of charging up : 2 hours .                       

 Input voltage: USB 5V , USB can be hide .

 Dimension: F9*104mm.