Features: This 12 claws head massager 360 degree steel ball massage, small and compact for easy portability, so you can enjoy a head massage anytime, anywhere. No hair pulling when using. Massage the scalp with high-frequency vibration, effectively promote blood circulation, relieve stress, promote sleep, improve insomnia, excessive dreaming, brain fatigue and dizziness. Through twelve rolling beads in the head 360 ° back and forth squeeze rolling massage, multiple directions to massage the scalp, so as to soothe the head, relax the scalp, acupressure effect. USB charging design, long life up to 200 minutes, without frequent charging, to avoid the embarrassment of power shortage depletion. When the massager is attached to the scalp, the head will feel the vibration, the massage claw will not vibrate. If you confront any problems about our products, please feel free to contact us, we are ready to help. We will solve your problems as soon as possible. Specification: Product Size: 188*145*145mm Charging Voltage: 5V 1A Battery Capacity: 3.7V 500mAh Charging Port: DC3.5 5V Charging Time: About 3-4h Notes: 1. Due to different monitors and lighting effects, the actual color may be slightly different from the image. 2. Due to manual measurement, please allow 1-4mm deviation. Include: 1×Electric Octopus Claw Scalp Massager