Soundproof Earmuffs Noise-Proof Sleep Earmuffs Industrial Protective Earmuffs Ear Caps(Black)

1. Material: ABS shell, high density sponge
2. Usage: Sleep, industrial noise prevention
3. Classification: Suitable for use in a 105 decibel environment
4. SNR: 35
5. Noise reduction rate: 36%
6. Cup thickness: 4 mm
7. Weight: 0.425 kg