The Aspire Flexus AIO is an easy-to-use pod kit that supports both MTL (Mouth To Lung) and RDTL (Restricted Direct To Lung) vaping. Two coils are included to get you started – just add e-liquid. To get started with the Flexus AIO, just insert a pod, fill it with e-liquid and then either inhale on the mouthpiece or press and hold the fire button to vape.