RandM Tornado 7000 is a disposable vape device with airflow control and it is rechargable. It contains 14ml 0/2/3/5% nicotine salt e-juice and vape up to 7000 puffs. There are 52 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.