A vape pen is a device that employs an atomizer to vaporize a liquid or wax material for inhalation. The device is typically composed of a reservoir for holding the liquid, a battery-powered heating element, and an atomizer/cartomizer with a wick and coil. Most vape pens contain nicotine and other chemicals that turn into a water vapor upon contact with the heat created by the battery-powered atomizer. Vape pens often come in varying shapes and sizes, ranging from ones small enough to fit in your pocket to models designed to look like traditional cigarettes. Many vape pens offer adjustable power settings and temperature control giving users more control over their vaping experience. Additionally, some feature options such as pre-filled cartridges, refillable tanks, and even variable wattage capabilities which allows users to further customize their vaping experience. Some higher-end models of vape pens may also include features such as replaceable coils and even smart technology enabling them to be controlled via an app on your smartphone.