Moisture-proof sound-absorbing panel 90 x 30 x 7.5CM Soundproof mat Flame-retardant wall Sound-absorbing cotton (black) (black)

This product has flame retardant properties and will self-extinguish when it is away from fire. Waterproof and moisture-proof. Excellent insulation performance Improve sound clarity, optimize sound quality, sound insulation, sound absorption and noise reduction. High density flame retardant, long-lasting durability. Decorative wall, reusable Color: Black, Purple Applicable scenes: drum room, piano room, bar, KTV, bedroom, hotel, opera house, kindergarten, theater, recording studio, conference room, concert hall, etc. Size: 90×30×7.5cm. Material: sponge.