Basic and very popular acoustic panel with joint pyramid structure that protects against undesirable sound reflections and corrects spatial acoustics. Thanks to its compact size and low weight, it is suitable for wall and ceiling mounting and is also a great decorative accessory. The panel offers increased absorption of sound waves that impact at an angle due to multiple passes through layers of material, and thanks to the pyramid structure also offers improved high frequency absorption. Dimensions: 50 x 50 x 4 cm. Green colour design. Product is not made from fire retardant material and does not meet the fire standard DIN4102 B2. Not for professional use.