The Optrel Panoramaxx auto-darkening welding hood provides up to 6X the viewing area of a standard 2" X 4" auto-dark welding lens. The key to this revolutionary technology is the size and shape of the ADF, coupled with the unique Panoramaxx shell design, which allows the welding lens to be positioned closer to your face. The Panoramaxx also has advanced features like Autopilot, which automatically adjusts the shade level based on the brightness of the arc and True Color, which allows for realistic color perception in light or dark states. The Panoramaxx has bright, clear shade 2.5 light state and a built-in rechargeable battery that does not need replacing. The battery is charged through arc light or when manual charging is necessary, a micro USB charging port. It comes complete with micro USB cable, helmet bag and Oprel's 2+1 warranty.