Smart Bluetooth helmet riding helmet

One size (54-62cm head circumference), one-piece molding process. (double shell) matte effect

Material and structure: PC shell + American EPS foam + adjustable adjuster + sweat absorbing insect net lining + 18 ventilation holes + LED tail light

Please note: Standard logistics roughly lists a 15-day shipping window for this specialty item, but customers will receive secure doorstep delivery significantly ahead of schedule via our tracking-enabled express shipping pipeline.