Koss BT740iQZ Wireless Active Noise Cancelling Headphones: Long-lasting ANC Headphones That Keep the Noise Away

Published on Dec. 18, 2023, 3:54 p.m.

Looking for a pair of wireless active noise cancelling headphones with marathon battery life? The Koss BT740iQZ should be on your radar. With up to 32 hours of playback per charge and adjustable noise cancellation, these headphones from the American audio brand Koss can handle even the longest trips and noisiest environments.


The Koss BT740iQZ Active Noise Cancelling Wireless Headphone adopts an over-ear design for all-day wearing comfort. The soft leatherette earpads gently hug the head without causing fatigue. Dual-mode active noise cancellation effectively blocks out ambient noise, while Transparency Mode lets in external sound when needed. On-board controls make it easy to manage music and calls. The star of the show is undoubtedly the whopping 32-hour battery life that sets new standards in the wireless ANC headphones market.

 Koss BT740iQZ Active Noise Cancelling Wireless Headphone

Key Features - Wireless Freedom Meets Peace and Quiet

With Bluetooth 5.0 wireless connectivity and adjustable active noise cancellation, the Koss BT740iQZ Active Noise Cancelling Wireless Headphone allows you to enjoy your audio freely without getting tangled in wires or distracted by external noise. The long-lasting battery gives you over 30 hours of uninterrupted listening pleasure. It’s truly everything you need for indulging in music on the go.

Sleek yet Sturdy Design

The Koss BT740iQZ Active Noise Cancelling Wireless Headphone flaunts a slender and lightweight profile with smooth matte plastic and stainless steel accents, exuding refined style. The adjustable padded headband and swiveling on-ear cups provide a secure and personalized fit. Its durable build can withstand the rigors of everyday use. The collapsible design further enhances portability.

Remarkable Noise Cancellation for Distraction-Free Listening

Through its dual noise-cancelling microphones and advanced digital chip, the BT470iQZ actively blocks out ambient sounds across a wide frequency range. This allows you to immerse in your entertainment without distractions even in noisy environments like trains or planes. The transparency mode lets you tune in to external sounds when needed just by pressing a button.
 Koss BT740iQZ Active Noise Cancelling Wireless Headphone

Intuitive Controls at Your Fingertips

Onboard buttons allow convenient control of audio playback, call management, switching between ANC and transparency modes as well as summoning voice assistants without touching your phone. Whether you want to skip tracks, adjust volume, mute yourself during calls or activate Siri, everything is easily accessible on the headphones.

Balanced Audio Drivers Deliver Immersive Listening

Equipped with 40mm neodymium drivers, the headphones pump out impactful bass, sparkling treble and smooth midrange for well-balanced audio. You’ll feel immersed in your music, podcasts and movies as if you are right there. The wide 20Hz-20kHz frequency response does justice to everything from booming EDM tracks to acoustic ballads.

Built-in Microphone for Clear Calls

Thanks to the high-quality built-in microphone, your voice will come through loud and clear on phone calls. No more asking the other party to repeat themselves. Just switch to transparency mode to hear your surroundings when taking a call on the go.

Lengthy Battery Life Keeps You Covered

You can enjoy non-stop playtime for over 30 hours per charge when ANC is turned off. Even with ANC activated, the battery lasts over 22 hours. This is way above average and ensures your headphones stay powered during long haul trips. The USB-C charging allows quick juicing up when running low.

Wireless Connectivity Across Devices

Bluetooth 5.0 connectivity provides stable pairing across iOS and Android smartphones, tablets, laptops and more. Multipoint technology allows simultaneous connections to two devices, say your phone and computer, so you can easily switch between them. The 3.5mm port offers wired listening option.
 Koss BT740iQZ Active Noise Cancelling Wireless Headphone

On-Ear Controls to Manage Everything

The onboard controls allow you to manage music playback, calls, ANC and transparency modes, activate voice assistant etc through simple button presses and toggles. Just tap or swipe to adjust volume, change tracks, answer calls and more without taking out your phone.

Durable Construction Built to Last

From the stainless steel headband to the plush faux leather on the earcups, the headphones feature durable materials that can withstand everyday use. The plastic exterior also feels solidly constructed. While not exactly premium, the build quality is quite decent for the price.
 Koss BT740iQZ Active Noise Cancelling Wireless Headphone

Lightweight Comfort for Hours of Listening

Weighing just 0.4 kg, the Koss BT740iQZ Active Noise Cancelling Wireless Headphone feels lightweight on the head. The soft padded earcups and headband prevent any discomfort even after prolonged use. The adjustable clamping force and swiveling earcups allow personalized fit. The headphones make for pleasant wear over long listening sessions.

IPX4 Rating Handles Splashes

With IPX4 water resistance rating, the headphones can withstand splashes and light rain. You don’t have to worry about sweat damage either during workouts. Just don’t submerge them in water. The water protection gives added peace of mind.

 Koss BT740iQZ Active Noise Cancelling Wireless Headphone

Use Cases - Travel, Commute and Entertainment

The Koss BT740iQZ Active Noise Cancelling Wireless Headphone is suitable for daily commute, travel and entertainment use. Its capable ANC makes it perfect for noisy environments like planes and trains. The ultra long battery life also covers extended trips. Its clear call quality makes it great for conference calls and live streaming as well.

Origin & Warranty - Designed in USA with 1-Year Warranty

The Koss BT740iQZ Active Noise Cancelling Wireless Headphone is designed in the USA and comes with a 1-year warranty for peace of mind.

User Reviews - Excellent ANC but Comfort and Charging Could Be Better

The Koss BT740iQZ Active Noise Cancelling Wireless Headphone have received mixed reviews from users online. By analyzing what buyers have liked and disliked about these wireless ANC headphones, we can get a balanced perspective on their real-world performance.

The Positives

Firstly, many users praise the Koss BT740iQZ Active Noise Cancelling Wireless Headphone for their stellar battery life. The 30+ hours of runtime per charge far exceeds that of comparable wireless ANC headphones, making them great for long trips. Users confirm they can go days without recharging.

Secondly, owners compliment the capable active noise cancelling that significantly reduces ambient sound in noisy environments like airplane cabins or busy offices. The ANC allows for undisturbed music listening and call clarity.

Users also appreciate the intuitive onboard controls which allow easy management of volume, tracks, calls and ANC modes. The buttons provide convenient hands-free control.

In terms of sound quality, users describe the audio output as decent enough for casual listening, with punchy bass and clear mids. The overall balanced sound profile suits genres from EDM to jazz.

Buyers also like the foldable design that makes the headphones easy to pack along in bags. The inclusion of a carrying pouch adds to the portability.

The Negatives

Now coming to the downsides reported by some users, the biggest complaint is about the outdated micro-USB charging port instead of the more modern USB-C. Many question this baffling choice in 2023.

While not a deal breaker, some users do feel the plastic build looks a bit cheap and lacks the premium styling and refinement of more expensive brands. The plain design doesn’t scream high-end.

Comfort is another aspect where users are divided. Some find the earcups too snug and complain about discomfort over long listening sessions. Those with larger ear sizes especially report issues with fit.

Finally, a minority of users face connectivity problems like audio dropouts when paired with certain phones. However, this seems device dependent.

The Verdict

To conclude, the positives like long battery life, great ANC performance and intuitive controls seem to outweigh the negatives for most Koss BT740iQZ Active Noise Cancelling Wireless Headphone owners. At its affordable price point, buyers find these headphones deliver great value. The comfort and connectivity issues don’t appear widespread. All said, the Koss BT740iQZ Active Noise Cancelling Wireless Headphone makes a compelling choice for budget-conscious buyers looking for long-lasting wireless ANC headphones.

Pros & Cons

- Incredible 32 hour battery life
- Great ANC performance to block out ambient noises
- Clear and powerful audio output
- Convenient controls and connectivity

- Comfort could be improved
- Outdated micro-USB charging port
- Lacks premium design and build quality

Value for Money - Impressive Battery at a Reasonable Price

For its stellar 32-hour battery life alone, the Koss BT740iQZ Active Noise Cancelling Wireless Headphone offers impressive value at its price point. The capable ANC and decent sound make it a well-rounded wireless ANC headphone choice for daily use, especially for frequent travellers. However, those looking for top-notch craftsmanship and premium audio may want to consider more high-end options.

Verdict - Impressive Overall Package

With marathon battery life, effective active noise cancellation and quality sound, the Koss BT740iQZ Active Noise Cancelling Wireless Headphone makes a compelling case for itself among sub $150 ANC wireless headphones. While the bass could be tighter and build quality more refined compared to premium options, the Koss BT740iQZ Active Noise Cancelling Wireless Headphone delivers where it counts with long endurance and a moderate price tag. For those seeking ANC on a budget, it’s certainly worth a close look.


  • Frequency response: 20 - 20,000 Hz
  • Bluetooth: Bluetooth 5.0 with Multipoint
  • Noise cancellation: Dual-mode Active Noise Cancellation with Transparency Mode
  • Audio controls: On-board controls for music, calls, voice assistant, ANC and Transparency Mode
  • Battery: 30+ hours (22+ hours with ANC on)
  • Charging: USB
  • Additional connectivity: 3.5mm port for wired use
  • Included: BT740iQZ, 3.5mm audio cord, carrying pouch
  • Comfort: Soft leatherette cushions and headband
  • Fit: Adjustable headband and articulating earcups

What’s in the Box

The Koss BT740iQZ comes with:

  • BT740iQZ headphone unit
  • 3.5mm audio cable
  • Charging cable
  • Leatherette pouch

How to Use

To use the Koss BT740iQZ:

  1. Charge the headphone fully before first use.
  2. Turn on the headphone and pair it with your Bluetooth device.
  3. Wear the headphone properly over your ears. Adjust the headband and earcups to fit comfortably.
  4. Play audio and adjust the volume.
  5. Toggle ANC, Transparency mode or mute the microphone using the on-board buttons as needed.
  6. Make sure to turn off the headphone after use for battery preservation.
  7. Store the headphone safely in the included pouch when not in use.