Smart, safe and built to last OtterBox Premium fast charge Wall Chargers are engineered rugged and built to outlast. This 30W wall charger is powered by GaN technology, giving you higher efficiency by generating less heat and a form factor that is smaller than ever — all while providing maximum power. Like all OtterBox Wall Chargers, this charger is drop tested and wrapped in a tough exterior for years of use. Thoughtfully designed with industry-leading mobile expertise and proven quality that is uniquely durable, these tough wall chargers are designed to work flawlessly together with all OtterBox Mobile Power Solutions — to build trust, foster connections and instill confidence for whatever the day brings. It’s a 360° design approach you can count on to keep connected to the people, places and moments that matter most.