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A VV/VW Mod at it's simplest is a battery powered vaping device that uses circuitry to regulate its output power and allows adjustment of it's output power in two ways: 1. By adjusting the voltage. 2. By adjusting the wattage. And the VV/VW mod has the ability to customize the output which can be helpful in a variety of ways, it allows the flexibility to quickly change and use a wide variety of atomizers with different resistance, coil types and wire sizes. Get best branded VV/VW Box Mod from Urvapin.