1 Noise Absorption: Efficiently absorbs indoor reverberant noise, optimizes indoor acoustic environment. 2 Eco-friendly Materials: Made from fire-resistant, non-toxic and environmentally friendly raw materials. 3 Wide Application: Ideal for conference rooms, studios, gymnasiums, auditoriums and various commercial interiors. 4 One-year Warranty: Offers stable after-sales guarantee and comprehensive product quality assurance. 5 Professional Installation: Supports customized size + on-site construction service for neat finished mounting.