A convenient and discrete top-fill style Innokin Jem Tank with a simple 3 hole adjustable airflow system makes this tank a great starting point for any beginner. Two 1.6 ohm coils are included (one inserted and one spare) with this tank which will mimic the mouth to lung style most beginners are looking for when starting out. Battery light indicators from Green to Orange to Red will let you know the status of the battery. Power adjustment is also available ranging from 10 watts to 13.5 watts. With air adjustment and power adjustment we feel you can tweak this great little device to find your perfect sweet spot to suit your needs.