LIVALL Smart Bike Helmet with LED taillight and turn signals, Bluetooth bike helmet with wireless remote control, SOS alert and built-in microphone and speaker, for men and women, black

["Enjoy the Ride: The Bluetooth bike helmet is equipped with windproof microphone and speaker, allowing hands-free phone calls, listening to music and audiobooks through wireless handlebar remote control; the walkie-talkie function enables riders to stay in touch with partners in their group while on the trail or road; riders can enjoy an immersive listening experience while still being aware of their surroundings","SOS Alert and Rider Safety: The app allows for SOS buttons, tracking rider and riding data; in the event of a collision on the road, if there is no movement within 30 seconds, the SOS function will be triggered and your GPS position will automatically be sent to the emergency contact to save the rider's life, lights maximize your visibility even at long distances","Secure and Lightweight Design: The smart helmet for adults is only 0.68 pounds and fits well on the head; the outer shell of the helmet is made of PC (Polycarbonate) material and high-density polystyrene foam, which dramatically absorbs impact force on the road; the battery can last up to 6 hours, safely sealed and providing enhanced protection from the elements while riding","Ventilated and Waterproof Smart Helmet: Designed with 21 ventilation openings in the polycarbonate shell to keep your head cool and allow you to keep riding; the helmet allows for head adjustment via the dial adjustable straps, allowing you to wear the helmet in the correct position; Size: Medium (21.25"-22.83"/54cm-58cm), Large (22.83"-24.4"/58cm-62cm); IPX4 waterproof design to allow for short exposure to rain","Support and Service: Communicate with your fellow cyclists using the walkie-talkie function by pressing the button on the remote control when riding in a group; we offer lifelong technical support; if you have any questions, feel free to contact us"]