<p>Color: Black</p><p>Material: ABS</p><p>Power per unit: 5mW</p><p>Wavelength: 650nm</p><p>Built-in battery: 500mAh</p><p>Battery voltage: 3.7V</p><p>Charging time: 2 hours</p><p>Usage time: 12-15 hours</p><p>Net weight: 43g</p><p>Product size: 19.5*15*2CM (7.68*5.9*0.79inch)</p><p>Packaging size: 21.3*16.3*2.8CM (8.39*6.42*1.1inch)</p><p>Recommended for people over 14 years old. This device is equipped with an improved dual probe, which supports ear canal and nasal cavity use, making it more comfortable and hygienic to wear. The 650nm laser irradiates the ears and nose, activates blood cells, improves blood fluidity and viscosity, achieves the effect of physical therapy, is painless and non-invasive, and solves the problem from the root. It can effectively promote blood circulation, relieve pain, assist in the treatment of trauma, relieve otitis media, assist in the treatment of external auditory canal eczema, and reduce tinnitus. Irradiating the nasal cavity can significantly improve the prodromal symptoms of cardiovascular and cerebrovascular diseases.</p>