Features 1. The 144 high-power chips in the full release version evenly distribute light at 48 speeds, effectively covering the head. 2. The outer hat is replaceable and can be worn with any hat you like. It features a hidden hair care and is fashionable and versatile. 3. Three band LED technology: 660nm red light wavelength, 470nm blue light wavelength, 850 infrared light wavelength, different wavelengths of light have different effects on the skin. 4. Lightweight board material: Lightweight boards are composed of skin friendly materials PU and non-woven fabrics. It is lightweight, easy to use, and can be installed inside a hat. 5. Near infrared radiation can promote skin metabolism, eliminate inflammation, improve hair follicle blood circulation, and protect hair. Specification Material: PU+Fabric Color: Black Size: 22.7 x 22.7 x 8.3 cm Weight: 420 g Package Include: 1x USB Plug Cable 1x Infrared Cap 1x Gift Box