It maintains clarity of normal sounds while safeguarding your hearing from harmful noise. Long Battery Life? Our ear protection offers up to 8 hours of battery life and includes a low battery alert feature. It comes with a portable charging case and anti-loss silicone tether for added convenience. The charging case for the shooting earplugs lasts 24 hours on a full charge and can recharge the earbuds up to 3 times. These earbuds are smaller and lighter than traditional noise-reducing models, ensuring compatibility, portability, and comfort combined.