Fast Charge Wall Chargers are engineered rugged and built to outlast. This 45 W 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 good mobile expertise and proven quality that is uniquely durable, these tough wall chargers are designed to work flawlessly together with OtterBox cases, screen and power accessories.