NOISE REDUCTION - There are high-fidelity, noise reducing earplugs that filter more or less noise on demand, thanks to a silicone filter (Loop Mute). They have a noise reduction rating (SNR) of 18 or 23 decibels, NRR of 7. STYLISH COMFORT - These high-fidelity earplugs come in 4 different sizes, so you can always find the perfect fit. The iconic round shape of sits perfectly in your ears, making it a fashionable accessory that protects your hearing. On top of that, the additional Mute filter (-5 dB) is available in 2 colors, black and white, to further personalize your earplugs. MULTI-PURPOSE -There are high-fidelity earplugs that preserve sound quality but avoid noise pollution. They protect your hearing during concerts, festivals or while making music. They are loved by audiophiles and extremely suitable for people who are easily triggered by noise (noise sensitivity, musicians, parents and more). EASY TO USE - These earplugs are easy to insert and when you wear them correctly, they don't stick out of your ears. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin