• Super noise reduction, deep sleep: the Y27 earplugs with dual-layer noise cancellation offer noise reduction of up to 35 dB thanks to their unique dual acoustic isolation structure. • They create a quiet environment for better sleep, meditation, work, or travel. • They help improve sleep quality, increase concentration, and make traveling more comfortable. • Comfortable to wear and easy to use: with 4 pairs of earplugs in different sizes. • Unique pressure relief hole design specifically designed for side sleeping for maximum comfort. • Unlike regular foam earplugs, silicone earplugs do not require squeezing.