Feature:1. Helps massage your scalp to promote blood circulation, reduce pressure and mental fatigue, improve sleep quality and improve hair loss.2. Suitable for athletes, fatigued people, the elderly, office workers, drivers, and others suffering from headache or stress.3. Easy to massage anytime and anywhere at home, full of energy, light, easy to carry and easy to use.4. 12pc rolling ball for comfortable massage, fits the scalp without pulling hair.5. Made of high quality material, soft and durable, not easy to break for long time use.Specification:Item Type: Electric Scalp MassagerPower Supply Mode: Lithium batteryBattery Capacity: 500mAh (included)Instructions:Aim the product at the head, press down firmly, and press it to the appropriate part. Press the power button to start vibrating. If you don't want to vibrate, press the power button again to shut down. During use, it can move up and down, or rotate left and right, and the steel ball can roll 360 degrees.Package List:1 x Electric Scalp Massager1 x USB Cable 1 x Manual