1. Stress Relief: Massage the scalp, effectively reduce stress, promote , make you feel comfortable and relaxed, and help improve insomnia.2. Vibration Mode: Press the red power button to switch between intermittent vibration mode and continuous vibration mode, meet your different use needs.3. Multiple Applicable People: Electric claw head massager is suitable for athletes, tired people, the elderly, office workers, drivers and other people with headaches or stress.4. Rechargeable Design: Built in 500mAh li ion battery, comes with USB cable for easy charging. Smooth and mellow massage head, will not scratch skin, safe and reliable.5. PP Material: Electric head massager adopts PP material, eco friendly, firm and sturdy, . Compact and lightweight, easy to carry, suitable for home and office.Specification:Item Type: Electric Scalp MassagerMaterial: PPBattery Type: Li ion batteryBattery Capacity: 500mAh (built in)Strength Gear: 1st gear relaxation mode, 2nd gear sleep mode, 3rd gear strengthen modeProduct Size: Approx. 128 x 128 x 185mm / 5 x 5 x 7.3inHow to Use:1. Remove the top switch cover2. Press the switch to select the mode you like. Put the massager on your head or move it up and down slowly along the head, so that the entire scalp can fully receive the vibration massagePackage List:1 x Scalp Massager1 x USB CableNote:Please allow slight error due to manual measurement. Thanks for your understanding.