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Koss QZ-77 Active Noise Reduction Ear Plug System
SKU
QZ77
The Koss QZ-77 Active Noise Reduction Ear Plug System combines active and passive noise reduction with custom memory-foam tips. This delivers a secure, comfortable fit for immersive listening without fatigue. Ideal for flights and daily commuting, it maintains clear audio in noisy settings.
The Koss QZ-77 Active Noise Reduction Ear Plug System brings together active circuitry and passive isolation in a compact in-ear design suited to frequent travellers and commuters.
Active processing targets low-frequency rumble from engines and cabin systems while the memory-foam tips expand to create a physical seal that reduces mid and high-frequency distractions. The result is a quieter listening environment that lets music or audio content come through clearly.
Dynamic drivers handle a full 10–20,000 Hz range for balanced playback, and the lightweight silver housing slips easily into a pocket or carry-on. This makes the QZ-77 a practical choice for anyone who needs reliable noise control and comfortable, fatigue-free wear on long journeys.
- Active Noise Reduction eliminates low-frequency engine rumble
- Passive Noise Reduction with memory-foam tips blocks mid & high frequencies
- Dynamic driver reproduces a wide 10–20,000 Hz frequency range
- Soft expandable cushions mold to ear canal for secure, comfortable seal
- Compact, lightweight build ideal for flights and daily commuting
| Additional Information | Brand: Koss Color: Silver Ear Placement: In-Ear Form Factor: Ear Plug System Frequency Response: 10–20,000 Hz Noise Reduction: Active & Passive |
|---|---|
| Main Sub Category | Audio |
Sales FAQ - Frequently Asked Questions
Here you'll find answers to our most asked questions about our sales products. Still can't find quite what you're looking for, or have something we should know? Send us an email, we're happy to help!
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Q1: Do you ship to my country?
A1: Most likely, you can see what countries we ship to in the drop-down at the checkout.
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Q2: Can i get a demo of the equipment?
A2: While we do do sales, we are predominantly a hire company so we do have some stock on hand but we dont have a storefront. If you'd like to get a demo on some equipment please call and we'll arrange an appointment to see the equipment if we have it available.
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Q3: What are the accepted payment methods?
A3: We accept online card payment with MasterCard, VISA or direct deposit.
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Q4: Does the price include GST?
A4: Our online prices displayed all include GST and are shown in AUD currency.
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Q5: When do I receive my order?
A5: Most orders are dispatched from Melbourne but some orders are dispatched from warehouses located in different states of Australia, sometimes items are sourced directly from suppliers. Delivery time will depend on the shipping country and address.
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Q6: Do I have to pay international taxes and duties?
A6: Your order may be subject to import duties and taxes, which are levied once a shipment reaches your country. We cannot control and is not responsible for any duties/taxes applied to your package upon delivery. You will be responsible for paying additional charges for customs clearance. Customs policies vary widely from country to country; please contact your local customs office for further information.
