Thickened Foldable Sleeping Noise Reduction Earmuffs Labor Protection Earmuffs(Blue)

1. Sound-absorbing cotton + ABS material, durable and practical2. Not easy to fall off, ergonomic design, stretchable size, suitable for different people3. The high-density sound-absorbing cotton embedded in the cup greatly reduces noise4. Soft and delicate, caring, soft and comfortable to wear5. Made of non-metallic material, comfortable headband, suitable for different head shapes, more comfortable to wearInstructions for use1. Stretch the headband across the top of the head and cover the ears with the cup2. Relax the headband back to its position and adjust the height of the cup until the headband can support the cup and the ears feel comfortable3. The cushion of the earmuffs should fit the head tightly4. Adjust the headband to ensure correct tightening and effectively isolate noiseWarm Tips1. Any earmuffs are not completely soundproof products, mainly used to reduce harmful noise2. There are safety hazards in the state of complete soundproofing. For this reason, people's normal speaking voices can still be faintly heard after wearing earplugs