Bluetooth Modular Motorcycle Helmet DOT Certified Flip Up Full Face Integrated Anti-Fog Dual Mask Helmet Street Motorcycle Helmet Built-in Dual Speaker Microphone for Adults, Men & Women (B,Small)

Friendly reminder Driving a motorcycle without a helmet is very dangerous. He also violates traffic rules. In order to better fulfill your purchase, please measure the actual value of your head circumference before purchase. If you back out, you are wasting your valuable time. This helmet has qualified DOT certificate, if you need it, please feel free to contact us, we will send the DOT certificate to you. Product Features 1. polymer carbon fiber material, crash and impact resistant. 2. high quality liner, sweat-absorbent, removable, not stuffy for long time use. 3. PC visor, anti-fogging. 3. PC sunshade, anti-fog, anti-rain, anti-HD UV. 4. 4. Designed according to aerodynamic principle, breathable and can always hold your head comfortably. 5. Certification: DOTFMVSS-218 certified Type: Motorcycle Hood Material: ABS ABS Size: S: 21.65-22.04 inches (55-56 cm) S: 21.65-22.04 inches (55-56 cm) Medium: 22.44-22.83 inches (57-58 cm) Large: 23.22-23.62 inches (59-60 cm) XL: 24.01-24.41 inches (61-62 cm) XXL: 24.80-25.19 inches (63-64 cm) Gender: Male Neutral Weight: about 1500 grams Head circumference: between 55-64 cm Bluetooth parameters: transmission Distance: 1OM MIC Distance: less than 1 meter Lithium battery: 1200mAh Charging time: about 2 hours Standby time: about 80 hours Continuous working time: about 30 hours Package includes 1x helmet 1* Independent Bluetooth headset 1* Independent tail 1* Windproof face shield If you have any questions, please email us, our customer service team will reply you within 24 hours and provide you with the best solution!