SKU: 58435200313

PSB M4U 9 - Premium Wireless Active Noise Cancelling Headphones

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Description

PSB M4U 9 - Premium Wireless Active Noise Cancelling HeadphonesM4U 9 Premium Wireless ANC Headphones The M4U 9 Premium Wireless Active Noise Cancelling Headphones redefine the expectations of PSBs True to Nature sonic performance with all new graphene infused drivers and improved ergonomic comfort. Pair to your device, play music and make voice calls noise free thanks to aptX Adaptive Bluetooth and cVc (clear voice capture) built in. Powerful technologies like Personal Sound by Audiodo allow you to calibrate your

M4U 9 – Premium Wireless ANC Headphones

The M4U 9 Premium Wireless Active Noise Cancelling Headphones redefine the expectations of PSB’s “True to Nature” sonic performance with all-new graphene-infused drivers and improved ergonomic comfort. Pair to your device, play music and make voice calls noise-free thanks to aptX™ Adaptive Bluetooth and cVc™ (clear voice capture) built-in. Powerful technologies like Personal Sound by Audiodo™ allow you to calibrate your left and right headphones separately so the music sounds just right, while PSB’s proprietary RoomFeel™ tuning and active noise cancelling leaves you with nothing but natural and open sound.

  • Premium Wireless Active Noise Cancelling Over-ear Headphones
  • Bluetooth HD wireless connection with Qualcomm® aptX™ Adaptive and cVc™ technology
  • Custom sound calibration with Audiodo™
  • Natural and open RoomFeel™ tuning
  • Graphene-infused drivers

Built for Premium Listening
Utilizing a new graphene-infused driver, the M4U 9 delivers improved damping, stiffness and efficiency for a truly immersive hi-fi audio experience. The M4U 9 Wireless Active Noise Cancelling headphones are at the pinnacle of PSB headphone performance, bringing PSB’s award-winning “True-to-Nature” sound signature to new sonic heights and providing crisp and powerful sound that lets you hear every detail of your favourite music and movies, even in the noisiest environments.

In Tune with You
Since each of us hear differently, there is no catch-all headphone setting that works for everyone’s unique hearing needs. Utilizing advanced algorithms, Audiodo Personal Sound™ checks your right and left ears separately through a series of audio tests and questions, correcting any hearing anomalies. It then quickly creates a personal hearing profile for you that compensates for anomalies in sound perception and hearing abilities, letting you fully hear PSB’s renowned “True-to-Nature” sound signature. The latest implementation of Audiodo includes a Volume Dependent Compensation feature so the M4U 9 can accurately match the timbral balance of the music at any volume level you choose. In addition, there are four EQ presets you can engage for specific music or movies – tighter bass, more detail, better dialogue and the default preset – RoomFeel™.

The full featured PSB Headphones App turns your device into a remote control for your M4U 9’s, giving you access to specific sound settings and features that you can adjust for a richer listening experience. With the tap of a few buttons you can create a sound profile using Audiodo, control noise transparency levels, choose from preset EQ settings, check battery level and more.

RoomFeel™ Realism
Created to deliver rich and natural sound through headphones, the next generation of PSB’s proprietary RoomFeel™ technology mimics the experience of listening to a pair of high-quality, full-range speakers properly set up in a good room. Carefully developed, using research and expertise around ‘Room Gain’ – the energy and warmth that room boundaries add to the response curve of a flat-measuring loudspeaker, RoomFeel makes the music feel less ‘in your head’ by recreating an open and natural in-room listening experience through the M4U 9. Regardless of the environment you’re situated in, RoomFeel brings you the most natural, non-fatiguing listening experience even during long work days, journeys on transportation or binge watching sessions.

Active and Adaptive
Using adaptive technologies, the M4U 9 headphones adjust to your environment while you move, work and play. Pair the headphones to your device seamlessly with aptX™ Adaptive Bluetooth, a 24-bit, HD universal Bluetooth technology that uses a variable bitrate to enable low-latency audio reproduction for playing games or watching movies while still offering the best possible sound quality. To block out the noise, the M4U 9’s all-digital active noise cancelling (ANC) capabilities utilize 4 digital MEM microphones to decrease audio conversion errors in audio processing for pure, focused listening, with two additional mics for cVc™ (clear voice capture) technology that delivers crystal clear voice quality for all your voice calls.

Luxe Mobile Listening
The epitome of comfortable listening is at your fingertips so you can listen longer and with noise-free focus throughout the entire day or night. Enjoy up to 25 hours of run time in Active Mode, or if you’re running low on battery, switch to two different modes of wired operation: 3.5mm wired connection, or via USB-C from the computer which recharges the batteries while you listen. Toggle between three different listening modes: ANC with RoomFeel, Active with RoomFeel or a Passive mode, using the physical switch on the headphones and mix in your surroundings by adjusting transparency levels through the PSB Headphones App Super soft earpads – fabric and leatherette – are included with the M4U 9, providing excellent seal so all that’s left is rich, detailed sound. The gyro-suspended earpads are tilted at 15 degrees for ideal ergonomic support, while the expandable headband features a fabric inner cover for optimal comfort.

  • Premium wireless noise cancelling headphones
  • PSB’s award-winning “true-to-nature” sound signature
  • Graphene-infused, 40mm drivers
  • aptX™ Adaptive wireless HD Bluetooth
  • All-digital adaptive noise cancelling (ANC) for pure noise-free listening
  • Personal Sound calibration with Audiodo™
  • Connects to PSB Headphone App for more control and personalization
  • Up to 25 hours of battery life for all-day wireless playback
  • Powerful rechargeable battery with a USB C charger
  • Compatible with iOS and Android devices

Specifications

 

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SKU: 58435200313

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4.4 ★★★★★
Based on 24 reviews
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Patricia
Lexington, US
★★★★★ 5
Work well
They’re a little smaller than I thought but you can fit a dove bar in them. They work well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 9, 2022
S
Verified Purchase
Sarah B
Charlottesville, US
★★★★★ 5
Stellar information!
Format: Paperback
I bought this book to help with gathering information for a long research paper I was writing for university but I loved this book! From the cultural anthropological history to the braided neuroscience and historical analysis in between, this has become one of my recent favorites. I've even asked for other books written by this author on my Christmas list. Very fascinating read!
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Reviewed in the United States on December 12, 2025
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Patrick A. Stewart
Alexandria, US
★★★★★ 5
Leveling the playing field
Format: Hardcover
It is a not so tightly held secret that the Republicans know how to manipulate emotions for political advantage; with this book Drew Westen levels the playing field by not only providing insight into how emotions are evoked and taken advantage of politically, but also provides evidence-driven suggestions for the Democratic party to follow. The question, of course, is will the Democrats change their electoral strategies taking Dr. Westen's suggestions to heart, or will they follow the failed tactics of the Gore and Kerry campaigns, which relied on consultants following a rational-choice model of politics that prefers watered down political positions and milquetoast candidates in hopes of taking the "center". While some may argue that this book is unethical by advocating the targeting of voters' emotions, instead of their "rational thought process", and thus is supportive of public manipulation, a very strong counter-argument might be made that putting this information in the public domain will help voters inoculate themselves against current Republican strategies which rely on scaring the public and arousing their anger against others using a range of techniques that border on the illegal. Specifically, the "RATS" subliminal advertisement used by the Bush 2000 campaign to attack Gore is, on close scrutiny, a very astute and professional advertisement that takes advantage of knowledge in the academic sphere that humans process information outside of conscious awareness. Specifically, a 1986 article in the Journal of Personality and Social Psychology by Fazio et al. provided evidence that not only did the term "RATS" have a negative effect on peoples' evaluation of items presented afterwards, but that further, the term "Reagan" had a weak positive effect. Likewise, both Westen and colleagues and Stewart and Schubert(in Harvard International Journal of Press/Politics, 2006), in separate studies, suggest that the term "RATS" is an effective subliminal. Furthermore, the use of fear/anxiety by the current administration is well established, with studies showing a correlation between changes in the Homeland Security color-coded threat indicator and political tactics. While one might argue over the timing of the Iraq invasion, and whether it was carried out for short-term political expediency, or to address a perceived threat in the region, one cannot argue with the rally effect that bolstered President Bush's ratings to over 90% immediately after 9-11 and over 70% after the Iraq invasion. Knowing that humans respond in predictable ways when different emotions are evoked allows not just politicians, consultants, academics and wonks to understand human behavior, but also will give the average citizen greater awareness of how the emotions evoked affect their decisions and responses. In other words, a more intelligent population may come from a more emotionally astute population.
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Reviewed in the United States on September 5, 2007
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Verified Purchase
Malvin
Cuba, US
★★★★★ 4
A compelling counternarrative
Format: Hardcover
"The Political Brain" by Drew Westen is an important contribution to the political science literature in general and an inspiration for Democratic Party supporters in particular. Mr. Westen's knowledge of psychology and the cognitive sciences provides insight into how the individual develops a political consciousness. Showing how the Republican Party has gained advantage by developing an emotionally fear-laden narrative designed to exploit the electorate's psychic sensibilities, Mr. Westen argues that Democrats can and must develop a compelling counternarrative that appeals to the American public's better angels in order to inspire their supporters and win consistently at the polls. The first section discusses the mind, brain and emotion in politics. Mr. Westen draws upon the latest scientific research to explain how emotion is integral to the brain's cognitive function. Mr. Westen recites passages delivered by Franklin Delano Roosevelt and Bill Clinton to illustrate how political messages are most effective when they tie issues to emotionally resonant themes and images. Importantly, Mr. Westen also deconstructs the neoliberal ideology of Ronald Reagan to help us better understand the importance of evolutionary psychology and crafting popular messages with curb appeal. The second section provides a blueprint for executing emotionally compelling campaigns. Mr. Westen explores the multiple layers of voter intelligence to reveal how Republicans have successfully used subliminal messaging to activate the public's feelings of anxiety in order to get people to vote against their own material self-interests. The author stresses that when Democratics shy away from conflict, voters instinctively detect weakness; therefore he recommends that Democrats cede nothing and go after issues that many voters tend to perceive as Republican. To that end, Mr. Westen offers a series of principled narratives on contentious issues such as abortion, affirmative action, gay rights and gun control that he believes could easily help the Democrats gain majority support by activating the American voter's sense of fairness, freedom and equality of opportunity. While perhaps not fully convincing on all subjects, Mr. Westen amply demonstrates that a coherent and inspirational counternarrative is possible. Unfortunately, this otherwise excellent book succumbs to a transparent attempt at self-promotion by forcing readers to go to the author's website to read the footnotes. Boo! Yet despite this minor deficiency, I highly recommend this timely and fascinating book to everyone.
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Reviewed in the United States on February 10, 2008
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Jan Strnad
Massapequa, US
★★★★★ 5
Essential reading for Democratic campaign managers
Format: Kindle
For decades it has frustrated me that, while most of the country shares Democratic beliefs over Republican ones, Democrats keep losing elections. Why? Because the very values Democrats hold dear...taking the higher road, trying to stay "above the fray", concentrating on issues over personalities...fail to speak to the emotional brain that makes most voters' electoral decisions. Whether it's the language they use while failing to understand its connotations, over-handling by committees that blunt the message, or simple refusal to debate some topics at all (abortion, gun control, race) thereby defaulting on them to the Republicans, Democrats systematically undermine their own campaigns. Westen's book is must reading for every Democrat who wants to hold public office! Thus, the five stars. On the other hand, Westen makes his point clearly and firmly in the first third of the book, and then beats us over the head with it, taking us point by point through campaigns, tweaking the information endlessly, and frankly, about halfway through I started skimming and eventually put it down. "I get it already!" I thought, and moved on. Also, this is horribly produced ebook. It's obviously scanned from a printed copy and poorly proofread, it at all. When Westen talks about the perception of the word "gull" and how it affects elections, you have to read a bit to understand that it's the word "gun" he's talking about! Words bizarrely split, words run together, bizarre punctuation and misspelling due to OCR errors are rife on every single page. Furthermore, the type looks like bad photocopying with the machine set on "light." Ugly, ugly, ugly. Yet the publisher (Hatchette) charges nearly as much for the ebook as for the print book, which I'm sure looks a lot better. It couldn't look any worse. If I could, I'd rate it "five stars" for the content, downgrade it to "three stars" for being redundant, and finally give it "one star" for being so terribly produced. That first third of the book, though, is so important for Democrats to understand (the Republicans already have a masterful grasp of it) that I went with the "five star" rating.
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Reviewed in the United States on September 10, 2011

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