About this product Name: Smart Scalp Massage Comb [Unique Design] This massage comb uses EMS weak current massage and rhythmic frequency vibration massage to evenly introduce nutrients needed by the scalp, and relax the scalp tension, relaxation and other unfavorable conditions, making you more comfortable. [Best Material] This product is made of ABS, silicone, stainless steel and other materials, with strong stability, safety and no obstacles, and powerful functions. Three levels of vibration and four adjustable modes are suitable for different sensitive states. Red and blue lights alternate or appear alone, representing different massage mode switches, making your hair smoother and more shiny. Restore your confidence and sunshine. Rated voltage:3.7V Rated power:0.5W Charging voltage:5V Charging current:0.53A Material: ABS + Silicone + 304 stainless steel + Copper electroplated white nickel Color: As Shown Package Contents: 1 x scalp smart massage comb 1 x USB charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.