[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. [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. [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. [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.