Advanced Laser TherapyExperience 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. Long-Lasting PerformanceBuilt-in 500mAh rechargeable battery provides 12-15 hours of continuous use per 2-hour charge. Compact 19.5152cm design (43g) makes it perfect for travel and daily use. Premium QualityMade from durable ABS material in sleek black. Features precise wavelength control (65010nm) and safe 3.7V operation. Includes protective case for storage. Complete PackageComes with charging cable and instructions. Package dimensions: 21.316.32.8cm. Ideal gift for those seeking non-invasive ear and sinus therapy solutions.