PhoneStar is a revolutionary sound insulation board that redefines acoustic control. Engineered with precision in Germany, PhoneStar is designed to significantly reduce sound transfer in both residential and commercial spaces. 

PhoneStar combines loose sand and the versatility of cardboard in carefully structured layers. This unique configuration effectively disrupts sound waves, particularly those at low frequencies, providing superior noise reduction. 

Made from sustainable materials like sand and cardboard, PhoneStar is a natural choice for environmentally conscious projects. 

Applications include walls, floors, and ceilings.