Eliminate echo and improve sound quality with crystal-designed pyramidal insulation panels, which work to diffuse sound waves and reduce echo and reflections within the space, giving you clearer and more professional sound. ✅ Available thicknesses: 5 cm and 7 cm ✅ Effectively diffuses sound and reduces echo ✅ Suitable for studios, recording rooms, podcasts, lounges, home theaters, and gaming rooms ✅ Easy to install and lightweight ✅ High-quality material with a professional pyramidal design Make your sound purer, and say goodbye to annoying echo with the pyramidal crystal insulation.