Features： 1、Main Application: The acoustic panels can absorb sound at any frequency, ideal for recording or listening environments. 2、Widely Used: The acoustic panels can be widely used in different scenarios and will improve sound effects in recording studios, offices, rehearsal spaces, home theaters, game rooms, etc. 3、Absorption Ability: The acoustic panels eliminate echoes and background sounds not by blocking sound, but by absorbing it. Which effectively lessens the noise pollution. 4、Triangular Groove Design: The triangular groove design can effectively increase the sound absorbing area within a limited area and increase the sound absorbing effect. 5、Polyurethane Material: Polyurethane has good flame retardant, sound insulation, shock resistance. You can use the panels for a long time. Specification： Item Type: Acoustic Panels Material: Polyurethane Suitable for: Recording Studio, Drum Room, Office, Factory Basic Parameter: Size: Approx. 30 x 30 x 2.5cm/11.8 x 11.8 x 1in Package List： 10 x Acoustic Panels