Being all-in-one style, SMOK SKYHOOK RDTA BOX is an integration of both a box mod and a rebuildable drip tank atomizer. Powered by two external 18650 batteries, the SKYHOOK max output power can up to 220 watts. You will have a deep impression with its compact size, ergonomic design, big fire key, superior wicking and airflow. 9ml built-in tank,0.96-inch OLED screen, floating velocity posts and multiple airflow, all contributes to a great vaping experience to you. You can buy SKYHOOK RDTA BOX kit or SKYHOOK RDTA atomizer according to your own tastes.