650NM Red Light: This ear red light therapy device emits 650nm red light. The ear canal contains numerous capillaries, and the thin skin of the ear allows the 650nm red light to easily reach blood flow areas. USB Design: The red light therapy device features a USB design, allowing direct connection to a mobile power supply or compatible adapter for use. Easy to Use: No buttons or complicated operations required. Simply plug in a mobile power source to begin use. Recommended for use twice daily, 30 minutes per session, once in the morning and once in the evening. Easy to Carry: The device is compact and portable, similar in size and shape to wired headphones, making it convenient to carry in a pocket and use at any time and place. Color: White Material: Plastic Package Contents: 1 x Red Light Therapy Device Note: The package includes only the items listed above. Other accessories or products are not included. Note: Due to light reflection and differences in display screens, the color of the item in the image may vary slightly from the actual product. Measurement may vary by +/- 1-3 cm.