RandM Tornado is a disposable vape device with airflow control and it is rechargable. It contains 12ml 0/2/3/5% nicotine salt e-juice and vape up to 6000 puffs. There are 30 flavors for you to choose. The airflow control let you choose the best spot suit yourself plus it comes with a rechargeable Type-C port at the buttom of the device, which gurantte you finish the last drop of the ejuice in the tank all the time.