12 pcs. Polyester fiber sound absorbing panel, hexagonal sound absorbing material for sound insulation and sound1. The shape of the product is an ordinary hexagon with a side length of 15 cm. One size is about 30x26x15cm (with some error), the cutting is flat and even, fireproof, safe and easy to install. It is a good helper to reduce indoor disturbance and reverberation.2. This acoustic studio foam has excellent insulation sound and excellent absorption sound. Professional acoustic control. By increasing the sound absorption efficiency of the room, sound transmission through the wall is reduced, thereby reducing noise3. The sound-absorbing foam is made of high-quality, environmentally friendly materials that are safe and durable. Small openings permeable to high-density air, not easy to deform, strong lifting force and long service life.4. Very easy to install. Just put the foam in a ventilated place for 24-48 hours to make sure the walls are clean and smooth without loose debris and dust, and then stick the double-sided tape on the foams, and then gently press the sound-absorbent panel to complete the installation.5. Very suitable for sound processing in walls or recording studios-suitable for recording studios, control rooms, office and home studios, theaters, home entertainment, home offices. In addition to being used as acoustic insulation