Product name: Numbor of Led Light: 60pcs 670nm, 60pcs 830nm Product perimeter: 25.6in 65cm Product Diamete: 7.87in 20cm Product Weight: 4.7ounce 133g Package included: 1 Hair Growth hasAutomatic Timing Function: Automatic Shut Down After 20 Minutes Of Power On, Do not Worry About Excessive Treatment.If you need to break during use, you can long-press the Switch to turn it off. It is recommended to use it for 20 minutes each time, 3-4 time a week.High Quality and Lightweight: Low Light Decay and Long Service Life.Foldable and Portable, It's Lightweight at only 133g (4.7oz).Use without Burden.Two pulse modes: 10Hz pulse fashion is the best solution to relieving headaches and insomnia, while 40Hz pulse fashion benefit photobiological regulation and provides comprehensive care for your head.Different Lighting Effects: Various Data Show That Different Wavelengths of Light Can Meet Different Light Transmission Requirements.The Product Has Two Wavelengths of 670nm and 830nm, which can meet the needs of different parts.Convex Optical Design: The Convex Lamp Beads Can Make The Light More Concentrated and Make The Light Travel in A Straight Line.It Can Reach the Hair Follicles of 1-3mm, Activate the Hair Follicle, and Let It Re-Eenter A Healthy Growth Phase.Product name: Numbor of led light:60pcs 670nm, 60pcs 830nm Product perimeter:25.6in 65cm Product diamete:7.87in 20cm Product weight:4.7ounce 133g Package Included: 1 Hair Growth HatAutomatic timing function: Automatically shut down after 20 minutes of power on, do not worry about excessive treatment. If you need to pause during use, you can long-press the switch to turn it off. It is recommended to use it for 20 minutes each time, 3-4 times a week. High quality and lightweight: Low light decay and long service life. Foldable and portable, it's lightweight at only 133g (4.7oz). Use without burden. Two pulse modes: 10Hz pulse mode is the best solution to relieving headaches and insomnia, while 40Hz pulse mode benefits photobiological regulation and provides comprehensive care for your head. Different lighting effects: Various data show that different wavelengths of light can meet different light transmission requirements. The product has two wavelengths of 670nm and 830nm, which can meet the needs of different parts. Convex optical design: The convex lamp beads can make the light more concentrated and make the light travel in a straight line. It can reach the hair follicles of 1-3mm, activate the hair follicle, and let it re-enter a healthy growth phase.Hair Growth Hat, Red Light Hair Growth Therapy Cap with 120pcs Lamp Beads, 3 Modes, Automatic Timing Function, for Thinning Hair, Prevent Hair Loss, Hair Regrowth