The Futon Ohm Tab is a Volt/Watt adjustable coil tab which may bring you a brand new experience that you've never found on any other coil tabs.
The Futon Ohm Tab has a side fire button which is pleasing to press with your left index finger. Mode select button, +/- buttons, screen and 510 port are on the top and an 1A current input type-C USB interface is on one side.
The "back trunk" is also available on this basic editon, it's not just a coil tab, but also a tool kit and an 18650 charger.