sono

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    Sonos, Inc. is an American audio equipment manufacturer headquartered in Santa Barbara, California.

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    SONOS, short for "siliconโ€“oxideโ€“nitrideโ€“oxideโ€“silicon", more precisely, "polycrystalline silicon"โ€”"silicon dioxide"โ€”"silicon nitride"โ€”"silicon dioxide"โ€”"silicon",