Description Features: 650nm Wavelength: Our ear canal laser therapy device utilizes a 650nm wavelength phototherapy to irradiate the head and blood vessels in the ear. This injects a large number of photons into the blood, improving brain waves and blood flow. Functions: This device can help balance high blood pressure, reduce high cholesterol, high blood fat, high blood sugar levels, and enhance the immune system's self-repairing capability. Usage: For optimal results, use this laser physiotherapy device once a day in the morning and evening for 30 minutes each time. It can help reduce inflammation and swelling, activate cell activity and blood circulation, regulate Qi and blood, and improve physical fitness. Portable: This compact and lightweight laser therapy device is portable, allowing you to use it anytime and anywhere. It's also suitable for the whole family to use. USB Interface: The device comes with a USB universal interface and can be powered by various devices such as computers, mobile power supplies, plugs, laptops, and more. Specification: Size: 8.3*2.5*8.2cm Wavelength: 650nm20nm Working Frequency: 50 Hz