WBD 5th Generation Helmet Headset - Various Colours

5th Generation Headset For Helmet (With sound pickup & noise reduction function) Available in Black, Coyote, Multicam and Multicam Black Product net weight: 400G Product gross weight: 0.57kg Way of wearing: Helmet-mounted Waterproof or not: Not waterproof Suitable head circumference: 52-64 Main material: Sound insulation cotton、ABS