The Kroma-Z is adjustable from 6-40 watts to take full advantage of the entire Z Coil Line, including the all new 0.3 Ohm 30-40W RDL Z-Coil! The Kroma-Z intelligently identifies the coil's resistance and automatically suggests a suitable wattage level. Charge the large and long-lasting 3000mAh battery quickly with a Type-C USB cable! The pod mod borrows it's sleep styling from the Innokin Kroma-R including the side firing bar. Just pick it up and squeeze for a fully satisfying vape! The body of the Kroma-Z is made of Magnesium Alloy, increasing its strength and greatly reducing its weight.