noun, noun which may take the genitive case particle 'no'
low noise; silent operation
Used for machines, appliances, or devices that operate quietly or with minimal noise. Often appears in product descriptions.
この掃除機は静音設計です。
This vacuum cleaner has a low-noise design.
静音モードに切り替えると、動作音がかなり小さくなる。
Switching to silent mode makes the operating noise considerably quieter.