Features: Red & Blue Light Therapy: Enhances scalp circulation and promotes hair growth. Microcurrent Technology: Stimulates hair follicles for better results. Rechargeable: Convenient and eco-friendlys with no need for batteries. Portable Design: Compact and easy to use at home or on-the-go. Improves Scalp Health: Helps with thinning hair and overall scalp vitalities. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement   Description: Input voltage: 5V/1A Rated power: 5W Charging interface: type-c Battery capacity: 500 mAh Battery life: 5h Package List: 1x Electric Scalp Massage Comb