The Joye Ego One series by Joyetech offers the capability to customize your vape. The Ego One allows the user to vape with standard or sub-ohm coils. As long as the battery is capable of temperature control, nickel or titanium coils can be used for temperature controlled vaping. Coils are also available that are pre-built or the user can use a coil that they can rebuild themselves. The Ego One series offers something for everyone. Comfortable, visually attractive, durable devices and lots of vaping power...Nice job Joyetech!