The main function. 1. High vibration frequency 2. Speedpost 3. Independent reservoir 4. Vibration 5. LED infrared light 6. EMS has 5 gears 7. Trichromatic Light 8. Rated voltage 5V 9. Product size: 268*186*66mm 10. Weight: 185g 11. The product does not include hair growth liquid, which can be matched with hair growth products by yourself 12. We strictly control the quality of each product to ensure that every user can get the perfect product and enjoy the best service. If you have any questions about our products, please feel free to consult.