DKONI Bike Helmet with Light for Adult, USB Rechargeable Cycling Helmet with Front Rear LED Lights, Built-in Turn Signal & Brake Light, Urban Commuter Bicycle Helmet for Men Women, M (21.2″-22.5″)

["【Perfect Fit Bike Helmet】Large Size: Fits head circumference of 22-24 inches (56-61 cm), Medium Size: Fits head circumference of 21.2-22.5 inches (54-58 cm). Designed for both men and women, helmet features an easy-to-adjust dial that allows for a customizable fit with just one hand, ensuring a secure fit without pulling your hair.","【Rear Light with Turn Signals & Brake Light for Multiple Safety Protection】This rear light integrates three key safety features: left turn signal, right turn signal and brake light. Just tilt the helmet left or right to trigger the matching turn signal effortlessly without any manual operation, bringing you safer riding on urban commutes, night trips and complicated road conditions.","【Front & Rear Light Design for Enhanced Riding Safety】Built-in front and rear dual lights significantly improve visibility in low-light conditions, such as dawn, dusk, or night riding. Mode 1 (front and rear lights on simultaneously) for maximum visibility, Lasts about 4 hours; Mode 2 (front light on, rear light off) for flexible use, Lasts about 7.5 hours. These features effectively help surrounding vehicles clearly spot your position, ensuring basic riding safety.","【Innovative Cycling and Skateboarding Helmet】Certified by CPSC, CE, and ASTM for safety, this helmet features a high-density durable outer shell and EPS foam interior, providing superior impact resistance. It offers comprehensive protection for urban commuting, cycling, and skateboarding, ensuring the best safety experience.","【Flexible Adaptive Adjustment Technology】Featuring an adjustable size design with an integrated adjuster to ensure a snug fit for cyclists. The rear adjustment knob combined with adjustable side straps allows riders to easily adjust, maintaining stability and safety even at high speeds.","【Comfortable and Breathable Wearing Experience】Designed with 4 optimized ventilation holes and airflow channels that combine air circulation with cooling channels. This provides a lasting comfortable experience even in hot weather, effectively keeping the head cool and suitable for prolonged wearing.","【Removable Washable Liner for Easy Maintenance】The liner is made of breathable mesh fabric, keeping you dry during rides. It is removable and washable for easy daily maintenance. Additionally, we promise excellent after-sales service for electronic products. If there are any issues with the lights, please feel free to contact us, and we will provide a suitable solution."]