1. Aim at nonscarring alopecia, androgenic alopecia, postpartum alopecia, thinning hair, backward hairline, etc. 2. Enhance and improve hair follicle blood circulation and metabolism, prevent hair loss and promote hair growth. 3. High energy, can regulate oil secretion, care for scalp and hair follicles, create a good hair growth environment. 4. 3 gears energy adjustment, you can regulate it according to needs. 5. No UV, adjustable brightness, multiple gears dimming, bring you convenience. 6. The machine emits a lot of heat during use, which can reach a temperature of 3045°C, match with red light, to achieve physiotherapy effect. Product Specifications -Number of LEDs: 48PCS (25mW-LED chip) -Input voltage: AC 100-240V -Voltage input: DC 5V 500mA -Charging port: Type-C -External battery: not supported -Shell material: OK cloth + TPU -Optical power: 25mw -Size: 227.7* 207.5* 8.3mm -Spectrum: 660:850 -Gross weight: 0.6kg -Maximum actual power: 25mW/pc The principle of the laser hair growth : It promotes the absorption of nutrients in the scalp by emitting a soft laser. After the laser acts on the skin of the head, it can stimulate the heat in the skin, expand blood vessels, and accelerate the blood circulation of the scalp. The result of this is to bring more nutrients to the hair. The soft laser can also kill germs, kill fungi hidden deep in hair follicles, dredge sebaceous glands, and reduce oil secretion. It can penetrate into the hair follicles in the dermis of the scalp and increase the activity of hair follicles. It has a stimulating effect on hair follicles, which can activate hair follicles and make hair follicles more active. Precautions: 1) After use, it should be stored in a ventilated and dry place; 2) Do not put heavy pressure on the product, otherwise it will be damaged; 3) Do not use too much force when unplugging the USB charging port, otherwise it will break and fall off; 4) To clean the product, turn off the power, wipe it with a damp cloth, and dry it with a towel or ventilate it; 5) Do not soak or rinse in water, and do not use strong detergents for cleaning; Package Included: 1x Hair Laser Cap If you buy our products, you encounter any problems in the process of using the products please email us at the first time to tell us, we will answer you within 24 hours to provide you with quality service.