The Soundproofing Panel Acoustic Insulation tiles you mentioned are designed to provide soundproofing and acoustic insulation in various spaces. Here are the specifications:

Type: Sealing Strips Size: 30x30cm Side length: 12” (30cm) Material: Polyester Density: 121-230kg/m³ Certification: CE

These acoustic insulation tiles are made of polyester material, which helps absorb sound and reduce noise levels in a room. They are typically used in recording studios, home theaters, offices, or any space where sound control is desired. The density of the tiles can vary within the range of 121-230kg/m³, indicating the level of sound absorption they provide.

With the CE certification, these tiles meet the standards of safety, health, and environmental protection in the European Union. They can be installed on walls or ceilings to improve sound quality and create a more acoustically balanced environment.