Deep Scalp Massage--- electric hair oil applicator is equipped with elastic rolling balls and auxiliary comb teeth, which can be close to your scalp, vibrating and massaging, rejuvenating hair.The scalp applicator vibrates rapidly, and the frequency can reach 10,000 times per minute. More functions of the latest model electric scalp massage looked forward to your use and discovery. Ideal gift for your hair care. Straight to the Roots--- The hair oiling applicator can accurately deliver the liquid or oil to the root of the hair, instead of letting them stay on the surface of the hair, keeping the whole use process clean, and not letting the medicine or essential oil be wasted. The hair oiling applicator is suitable for minoxidil, essence, nutrient solution, essential oil, etc. Please note: it doesn't apply to CASTOR oil! Clear Scale & Waterproof---The scalp massager for hair growth is equipped with a 50ML storage box, and it is marked with a clear scale, to prevent waste of application. The electric hair oil applicator is waterproof and can be rinsed off directly after use. Rechargeable & Intelligent Timing--- The scalp oil applicator is equipped with a type-c charging cable, which can be fully charged in one hour. The scalp oil applicator is equipped with intelligent shutdown function, which starts timing after startup and automatically shuts down after 10 minutes. Easy to Grasp and Carry--- The surface of the hair oil dispenser is designed with non-slip, and it is light in weight and small in size. Hair oil dispenser is convenient to hold in your hand and convenient to put in your handbag, letting you enjoy a soothing massage anytime, anywhere.