How does Bloom Farms HIGHLIGHTER® Battery work? December 28, 2021 21:34 Updated It’s simple. HIGHLIGHTER is breath-activated. Just inhale, and the heating element gently warms the cannabis oil to create potent, flavorful, smooth vapor. Related articles HIGHLIGHTER® Battery: Troubleshooting Does Bloom Farms HIGHLIGHTER® Vapor Battery work with third-party cartridges? HIGHLIGHTER® Battery & Cartridge: Capacity & Specs HIGHLIGHTER® Battery: Guarantee How should I store Bloom Farms cartridges?