CAHAYA CY0313 4 Acoustic Panels 9 mm Thick Padded without Back Adhesive 34 x 20 cm Sound Insulation Board Absorbing Noise Reduction for Office Door Walls Pack of 12 Grey

EASY TO INSTALL & 45° Chamfer Design: 45° chamfer design on each edge of each panel, making the gaps between the sound-absorbing panels less noticeable and aesthetically pleasing. The panels come without glue, we recommend double sided tape or spray adhesive. HIGH DENSITY ACOUSTIC PANELS The CAHAYA sound-absorbing panel has a density of 190 kg/m³ and an NRC (Noise Reduction Coefficient) of 0.91, which has excellent sound absorption and noise cancellation ability, which is five times more effective than ordinary sound-absorbing foams. You can enjoy high quality and clear sound. IMPROVE SOUND QUALITY: The sound insulation panels can effectively improve the sound environment and quality to minimize reverberation and echo. In addition, it prevents reverberation, sound field adjustment and noise reduction. Material safe and durable: this sound-absorbing plate is made of environmentally friendly environmental protection material with a formaldehyde content of less than 0.005 m³, odourless and non-toxic, safe for children and adults. Treated with Class B flame retardant treatment for superior safety and durability. Due to its high density, it also has excellent abrasion resistance for long-term use. Versatile: suitable for interior decoration such as exercise rooms, recording rooms, offices, recording studios, conference rooms, TV rooms, games rooms and bedrooms. Even if you want to cover the holes on your wall, this is also a good choice for you!