Nfix PRO is draw activated, so it's always ready to vape (when turned on). The Nflix PRO pod has a 2mL capacity and comes with a preinstalled LP1 Meshed 0.9 Ohm MTL coil, as well as an LP1 Meshed 1.2 Ohm coil. This means you can try out the two resistance levels to determine your preference. It offered also LP1 Meshed 0.8 Ohm and LP1 DC.0.8 MTL coils. https://www.vapeuniverse.co/products/smok-nfix-pro-kit?pr_prod_strat=pinned&pr_rec_id=7c49e7707&pr_rec_pid=7846676857084&pr_ref_pid=7846685769980&pr_seq=uniform