1. Material: ABS
2. High-definition dual-lens design, one-handed operation
3. Quick buckle design, can be adjusted according to different neck sizes
4. With bluetooth headphone slot
5. Large tail design, reduce wind noise, balance air buoyancy
6. There is an air outlet on the top of the helmet, not stuffy
7. Removable and washable lining, soft and comfortable inside
8. Lens fixing groove, firm and stable
9. Dimensions: 32.5x26.5x22.5 cm
10. Weight: about 1360 grams