The Tony Dabtana 2 in1 is a discreet and portable oil vaporizer. At less than 3” high and 1.5” wide, it fits in the palm of your hand! The included top airflow cartridge can work with all different viscosities of oil and with a removable front end, the pro can fit ANY size cartridge no matter how tall or wide. The 510 thread connection will ensure compatibility with most 510 threaded cartridge on the market, To operate The 2in1 all you need to do is turn it on and go. It features an on function of (5 clicks) that turns unit on for first use and (3 clicks)to scroll through different voltage settings a large 650 mAh lithium ion battery. The kit also included a micro USB charger. May be small, but it packs a big punch!