It's by far the best device for a low cost. You will need 2*18650 batteries and more that usually of e-liquids but the experience is amazing. A well worth of attention if considering something more powerful
http://vape2.news/vaping-kits/advanced-kits/kangertech-dripbox-160/
http://vape2.news/vaping-kits/advanced-kits/kangertech-dripbox-160/