Light Cycling Helmet USB Rechargeable Bike Ultralight Helmet Intergrally-Molded Mountain Road Bicycle Mtb Helmet

Overview:

1. Feature: Ultralight, Intergrally-molded, Insect net helmet

2. Function:Waterproof, Shockproof, Safety

3. Battery: 2000 Milliampere

4. Time:_ _ _ _

• Mighty_ _about 4 hours
• Low_ _ _ _about 9 hours
• Flash_ _ _about 24 hours
• Only side & rear warning light about 1 month
• __ _ ___