The Tesla Steampunk Nano is one of the smallest and best performing box mods available. It features an internal 4500 mAh battery giving you more than enough power to last you the day. Its capable of firing down to a 0.05 ohm whether you’re using Nickel or Titanium coils. Its steampunk design makes it a crowd pleaser. Tesla is by far the leading manufacturer of compact, high performing temperature control devices.