【Advanced Laser Therapy】Experience relief with our 650nm low-level laser therapy (LLLT) earplugs, clinically designed to help alleviate tinnitus, deafness, rhinitis and sinusitis symptoms. The gentle 5mW red light promotes cellular repair and circulation.<br> 【Long-Lasting Performance】Built-in 500mAh rechargeable battery provides 12-15 hours of continuous use per 2-hour charge. Compact 19.5×15×2cm design (43g) makes it perfect for travel and daily use.<br> 【Premium Quality】Made from durable ABS material in sleek black. Features precise wavelength control (650±10nm) and safe 3.7V operation. Includes protective case for storage.<br> 【Complete Package】Comes with charging cable and instructions. Package dimensions: 21.3×16.3×2.8cm. Ideal gift for those seeking non-invasive ear and sinus therapy solutions.