Description Design of double lens high definition transparent anti fog and endoscopic anti fog ultraviolet the lens can be opened when pulled down sunglasses push on shrinkable endoscopesHidden noise reducing mice traditional mobile phone middleheads can be used when riding Very noisy to solve this problem electronic noise reduction technology is used in the midwifery 100 yards ride without noise the midwives are hidden inside the helmet high sensitivity full copper pointing is used Microphone make sure the call is clear Surface lift switch red button at chin press up open and turn into a half helmet Reflective design behind helmet warning rear vehicles at nightCharging wire fast charging plug about 1 hour full of power off do not last long charging charging wire no charging head The charging head can be a plug for your mobile phone 6 segment bolt multistage safety buckle adjustable helmets are tight to wear Specification Material ABSColor As the pictures showSize head circumference L 59 60cm XL 61 62cm XXL 63 64cm Package Included 1 X Motorcycle Helmet