Features and Benefits: The Inspection Beam evenly illuminates work spaces easily swap one set of lenses for anotherclear smoke or amber lenses formulated to withstand tough work without developing typical signs of wear recharge the battery for the lighted safety glasses using the convenient built-inMicro-USB Port. Focus fast see clearly and protect your eyes with COAST SPG400 Safety Glasses with Built-In Inspection Beam. Equipped with our legendary Inspection Beam these rechargeable detail-minded glasses shine a perfect circle of light to keep your hands free reveal critical elements and keep you safer. The built-in LED improves near-range and medium-range viewing for up to 9.5 hours on a single charge (charging cable included). Rugged but refined these ANSI impact-tested safety glasses are built to lastfeaturing premium anti-scratch and anti-fog clear lenses. Padding on the nose and temple pieces ensures comfort for long days and a snug secure fit for high-intensity active work. The included soft pouch provides an easy solution for protecting the glasses and lenses while not in use.