Arizer Air 2 lasts 50% longer than its predecessor, and boasts an even faster heat up time. Its superior battery is also interchangeable, so you can swap out a dead battery with a fresh one and never miss a beat (extra batteries sold separately). Charge up via USB using the included cable and power adapter, and enjoy a longer battery life. Arizer Air II also boasts a pass-through capability so you can vape while the unit is charging. The battery now features precision temperature control so you can choose down to the degree the best temperature for your vaping style, whether you prefer flavor-rich sips, moderate rips, or large clouds. You can also choose the ideal temperature for your dry herb strain, as each strain has its own sweet spot for unlocking essential compounds. The Arizer Air 2 vaporizer's quicker, more powerful battery reflects in improved vapor production, user experience, and convenience.