LIVALL Smart Bike Helmet Built-in Mic Bluetooth Speaker for Music & Calls, Wireless LED Turn Signals Tail Lights, Adult Bicycle Cycle Helmet with SOS Emergency Alert, Walkie-Talkie

• Bluetooth Speakers and Mic: With built-in stereo speakers and windproof microphone, free your hand to dial or answer calls, listen to mainstream media, hear the navigation and use voice assistant; The bright helmet LED lights lets those behind you know which way you are turning, controlled by the wireless handlebar-mounted remote
• SOS Alert and Driver Safety: The App allows for SOS buttons, tracking riders and riding data; When you encounter a collision accidentally on the road, if there is no movement within 30 seconds, the SOS function will be triggered and your GPS location will be sent automatically to the emergency contact to save rider life
• Safe and Lightweight Design: The smart helmet for adult is merely 0.68 pounds and fit well on the head; The exterior shell of helmet employs PC (polycarbonate) material and high density polystyrene foam that is dramatically absorbed the impact force on the road; The battery can last up 6 hours, which is securely sealed and offers improved protection from the elements while riding
• Ventilative and Waterproof Smart Helmet: Design with has 21 vents in the polycarbonate shell to keep your head cool and you can keep on riding; The bluetooth helmet with indicators allows adjusting the head via the dial in the back and adjustable straps, they enable you to wear the helmet in the correct position; This size fits 21.65-24.01 inch; lPX4 waterproof design for allowing short exposure to the rain
• Support and Service: Easily communicate with your fellow cyclists using the Walkie-Talkie function by pressing the button on the remote control when riding in a group: We provide lifetime technical support, friendly and professional support team are at your service 24 hours; If you have any question, please do not hesitate to contact us