Product Feature: Professional Musicians & Living Concerts Noise reduction & construction take into account the resonant frequency of the ear fading sound levels evenly without changing the quality but more quiet & safe & Track Racing Enthusiasts Universal gadget with the advanced filter technology in the earplug itself, offering protect & clear communication. Easy to store and to carry around everywhere Comfort Sleeping & Anti Snoring Small plugs sleep are excellent to block unwanted noises while you sleep. The best silicone options that sit comfortably affording to hear the alarm early in the morning Mini Plug with Strong Soundproof Earplug kit provides effective shield against loud and high frequency fuss, while still allowing you to hear full spectrum of sound, not muffled. Specially designed soundproof PRO Set for construction work & Waterproof are made from safe & odorless plush soft skin-friendly material, not rubber, are suitable for girls & . Waterproof Wearing method: Pull up the upper part of the ear gently, align the earplug with the ear canal and gently rotate it to a suitable position to that the air in the ear canal does not communicate with the atmosphere. This product can be used repeatedly and cleaned. Product name: noise canceling ear plugs color: blue Material: silicone Earplug size: . 2.2x1.5x1.5cm Replacement earplugs size: . 1.8x1.5x1.5cm SNR(Signal Noise Ratio): 27db Waterproof: yes Application: for drummer, DJ, concerts, concerts, bands, bars, a variety of large-scale parties, , comfort sleeping and anti snoring to use. Package included: 3 x Pair of Noise Canceling Ear Plugs (With Filters) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.