{"product_id":"koss-qz-77-active-noise-reduction-ear-plug-system","title":"Koss QZ-77 Active Noise Reduction Ear Plug System","description":"\u003cp\u003eThe Koss QZ-77 Active Noise Reduction Ear Plug System combines active and passive noise reduction technologies to suppress a wide range of ambient sounds. Its built-in active circuitry targets low-frequency noises such as engine rumble and HVAC hum, while the memory-foam ear tips provide passive isolation against mid and high-frequency disturbances. The ear tips are made from slow-recovery foam that conforms to the ear canal for a secure and comfortable fit, enhancing both noise reduction and audio clarity. The product features dynamic drivers covering a 10–20,000 Hz frequency range and is designed with a lightweight, compact housing suitable for frequent travel and commuting.\u003c\/p\u003e","brand":"KOSS","offers":[{"title":"Default Title","offer_id":46245861425196,"sku":"QZ77","price":99.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2970\/9956\/files\/1930b876-aa5f-410b-a78f-c8cdfba6cff3.jpg?v=1790209467","url":"https:\/\/roycemusic.com.au\/products\/koss-qz-77-active-noise-reduction-ear-plug-system","provider":"roycemusic","version":"1.0","type":"link"}