Feature
- Solid Crust
- EPS Shock-absorbing Foam
- Illuminating Head Light
- Alerting Red Tail Light
- Convenient USB Port
- 750mAh Anti-explosion Battery. Fully Charged In 2.5 hrs
- Use 10 hrs straight in the most energy-consuming mode.
- Weight: 318g
- Head circumference dimensions: 48-53cm.
- Weight: 340g
- Head circumference dimensions: 54-57cm.
- Package Size M: 21x16x26.5cm
- Weight: 360g
- Head circumference dimensions: 58-61cm.
- Package Size L: 22x16.5x27.5cm
- 1 x Safety Helmet