1 Jackson Safety TrueSight II Auto Darkening Digital Cartridges / CaseLarge viewing area (4.5" x 5.25") and a best in class optical classification of 1/1/1/1; built-in magnifying lens holder - available in 7 focal powers (additional lenses sold separately)This auto dark has a digital keypad so you can see what you need (from TIG welding to arc welding to MIG welding and more)Features variable shade from 5-8 and 9-13 and is a 3-in-1 product, with weld, grind and torch modes; Make digital selections even with a gloved handThis welder shield has delay and sensitivity adjustments, four sensors, an auto-off function and a low battery alert (takes two AAA batteries, included)