1. Helmet Material The outer shell is made of lightweight ABS material PU leather, which is lightweight, strength, impactresistant, and provides comprehensive protection. The lining is crafted from density luxury material. These features significantly enhance your safety and comfort while riding. 2. Comfortable Inner Lining The motorcycle halfhelmet offers wearing comfort. The inner lining is made of skinfriendly, breathable, and moisturewicking materials, ensuring a cool and pleasant wearing experience. Additionally, the inner lining is removable and washable, keeping the helmet clean. 3. Multifunctional Smart Bluetooth Helmet Equipped with a nextgeneration Bluetooth 5.0 chip, it delivers fast, energyefficient, integration, lowlatency performance with no noise and stable quality music transmission. Battery capacity: 250 mAh, continuous working time: 6 hours, standby time: approximately 48 hours. 4. HD Visor Openface helmet with a hidden inner lens. The visor is scratchresistant, antiglare, and wearresistant, providing sun protection during the day and no glare at night for worry riding day and night.