Soundproof Earmuffs Sports Sleep Study Antinoise Hearing Protection Earmuff(Blue)

Features: Made from high quality ABS and silica gel, resistance to low temperature, corrosion and impact. Using high density sponge, soft and comfortable to wear, greater sound insulation ability. There are three colors of these earmuffs and you can choose the color you like most. Can be used for sleep, study, work, travel, racing, entertainment, etc. Being away from noise and gives you a peaceful and comfortable sleeping environment. Specification: Item Type: Earmuff Condition: 100percent Brand New Material: ABS + Silica Gel + Sponge Thickness of Cup Cover: Approx. 3cm / 1.2in NNR: 29dB SNR: 35dB Applicable Environment: 110dB Optional Color: Black, Blue, Red Package Weight: Approx. 380g / 13.4oz Package List: 1 x Soundproof Earmuffs .