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Amazon.com : Smart4U SH55M Adult Bike Helmet with LED Rear Light, Smart Bicycle Helmet with Turn Signal Function, Linked to The Phone Bluetooth Cycling Helmet, Suitable for Men and Women in Mountain
Amazon.com : LIVALL riding MT1 Smart Helmet, Cycling Mountain Bluetooth Helmet, Sides -Built-in Mic, Bluetooth Speakers, Wireless Turn Signals Tail Lights Setting, SOS Alert, Bike Helmet-Upgraded Version Neo : Sports & Outdoors
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Amazon.com: Sena C1 Smart Cycling Helmet with Bluetooth Intercom and Smartphone Connectivity for Music, GPS, and Phone Calls (Matte Gray, Medium) : Electronics
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