Tips: Cover USB in the rain・

Product Detail:

• Brand:ROCKBROS
• Name:Light helmet・ Cycling Helmet・ Bike Helmet・ Bicycle helmet
• Power: USB charging
• Feature:Ultralight・Intergrally-molded・Insect net helmet
• Function:Waterproof・ Shockproof・ Safety
• Battery: 2000 Milliampere
• Time: Mightyabout 4 hours
• Lowabout 9 hours
• Flash about 24 hours
• Only side & rear warning light about1month

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