Made of 30kg above density sponge, pyramid noise-absorbing sponge has elegant appearance and favorable acoustic characteristics; reduce interior reflected sound disturbance and resound by absorbing above 500Hz frequency sound to raise sound purity. Application: recording studio, recording studio, audio-visual, KTV, sound-proof room, assembly hall, studio interior decoration. Product specification: 500 x 500mm or 2 meter x 1.5 meter.
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