12 Pack Acoustic Panels - Acoustic Foam Sound Proof Panels Nosie Dampening Foam Studio Music Equipment Acoustical Treatments Foam -Black-

YWSHUF, Founded in 2001, is a supplier with independent innovation ability. We are committed to bringing healthy and comfortable products to everyone, every family, every organization and bring convenience to customers. We provide our customers with competitive, safe and reliable products and services in the fields of Home, Acoustical Treatments, Textiles and Rubber products. Different frequencies of sound, The degree of absorption varies. High-frequency sounds have a short wavelength and are easily absorbed. While low-frequency sounds have long wavelengths that can easily penetrate obstacles. For low-frequency sound, it is not only difficult to Sound insulation,but also difficult to absorb. It doesn't crash like a high-frequency sound in a messy, small passage, but it's easy to go around. However, as long as you thicken the sound absorbing material to a certain extent, you can absorb the low frequency above 130Hz.