Smart4u cycling helmet with tail light led road electric bike helmet for men/women city urban bicycle helmet brake light IPX4

Brand Name: wildside
Material: EPS
Age Group: (Adults) Men
Model Number: xiaomi SH50 scooter unicycle hoverboard bike helmet
Weight (g): About 373g
Air Vents: < 8
Certification: ce
Type: Light Helmet
Size: M: 54-58cm L: 57-61cm
Material: EPS+PC
Color: White, Sky Black (L) Red, Mint Blue (M)
LED Light Bead: 7
Light Mode: Quick Flashing Light, Tidal Light, Double Fast Flashing Light
Battery: 3.7V 455mAh
Battery Endurance: approx. 36hrs for lighting
Standby Endurance: approx. 180 days
Charging Time: approx. 3hrs
Feature 1: Automatic brake light
Feature 2: Automatic power off
Feature 3: Automatic light sensing
Feature 4: Magnet charging
Feature 5: IPX4