Smart4u SH50U Smart Bike Helmet: Automatic Brake Light & SOS Alarm for Urban Riding Review

🚴【Remind Traffic Behind You】The Smart4u SH50U smart bike helmet has an automatic brake light function like a car. When you want to stop, the 7 LED tail lights at the end of the helmet will be highlighted, which will remind you of the vehicles behind and eliminate accidental collisions. 🚴【SOS Alarm Function】When wearing this cycling helmet, after you encounter a collision accidentally on the road, if there is no movement within 30 seconds, the SOS function will be triggered by itself, and your GPS location will be sent to the emergency contact you set for quick and timely Rescue. 🚴【Let more vehicles notice you】This adult bicycle helmet has a built-in rear light with an output of over 500 lumens, allowing the Traffic to notice you from a distance. Through the buttons on the back of the helmet, you can switch between three flashing modes with one button, making you the most special presence on the road. 🚴【Comfortable wear】The SH50U riding helmet can adjust the size so that the helmet fits your head circumference perfectly. The 3D three-dimensional inner lining and 12 ventilation holes give you a comfortable wearing feeling and keep your head cool when riding. 🚴【Our guarantee】SH50U is a smart helmet product independently developed and produced by Smart4u. We are committed to providing the best riding helmet to every rider. If you feel any dissatisfaction after purchase, you can contact us to return the product.