What is a MOD ?
MOD devices or Mods (modification capable devices). Also, called APVs (Advanced personal vaporizers) are considered as third or fourth generation e-vaping devices. And, categorized under the open system e-cigarettes.
MODs can be customized to suit the user preferences. Also, all related major parts can be modified and fully controlled by the user.
Moreover, the battery has a variable voltage control. The coil can be controlled digitally or manually by replacing or rebuilding the whole tank and/or the coil with different resistance readings.