Echwave 240-Piece Sound Insulation Panel Sound Insulation Studio Foam for Wall Sound Insulation Board for Home Studio, 2.5 x 30 x 30 cm

2. The principle of sound insulation foam is that the sound inside the sponge is repeatedly reflected back and forth, achieving the effect of noise reduction and sound absorption. The acoustic panels not only have effective sound absorption properties, but also do not cause harm to our body. The absorption spectrum is wide and over 500 Hz. High density material, which is considered the industry standard of 30%. At the same time, the sound quality can be improved: by absorbing harmful noise, reducing fluctuations, reverberation and vibration, useful sounds become clearer. 1. How to restore the normal size of acoustic foam: 1. After opening the vacuum packaging, place the acoustic foam in a ventilated place for 12 to 24 hours. 2. Or soak the foam in water for 1 minute, wring dry, then air dry or use a blower dry. The high-quality studio foam can maintain its sound insulation function permanently. To clean, you only need to vacuum and dust them occasionally. 3. HIGH DENSITY FLAME RETARDANT MATERIAL The sound absorbing foam panels are made of flame retardant and environmentally friendly materials, which can be used safely. 4. Installation method: It is recommended to apply the tape to the four corners and in the middle of the back of the acoustic foam panels, and then attach it to the wall. Or you can buy adhesive to install the soundproofing foam according to your requirements.