The ESAB Sentinel A70 PRO Helmet is a flip-automatic welding helmet and features advanced optics, integrated lighting, and Bluetooth connectivity. This advanced helmet offers superior protection, comfort, and productivity. Features a 4.65" by 3.58" flip-up auto-darkening filter (ADF) with EN ISO V1 (1/1/1/1) optical classification. Premium features include an integrated worklight, external controls for lens shade and Grind Mode, advanced internal digital controls, a rechargeable LiPo battery, and more. The headgear design distributes the weight for all-day comfort.