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Overview

The PSB Speakers M4U 9 over-ear wireless headphones are designed to deliver immersive, custom audio that adapts to your unique hearing needs, with advanced noise cancelling for uninterrupted listening. These headphones combine comfort with next-level sound personalization for long, focused sessions.
  • Over-ear wireless headphones for comfortable, all-day listening
  • Up to 25 hours of battery life for extended playback
This description was generated by AI and reviewed for accuracy.

PSB Speakers M4U 9 BLK Over-Ear Wireless Active Noise Cancelling Headphone, Jet Black

Model: M4U 9 BLK
Web Code: 17193836
Sold and shipped by | 4.5 seller rating (66 reviews)

Available for deliveryAvailable online only

Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

Enjoy on orders from this seller.

Seller Return Policy

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Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

What's included:

  • M4U 9 Over-Ear Headphones
  • Airplane Adaptor
  • 1/4" Stereo Adaptor
  • Ergonomic Gyro-Action Ear Pads
  • 3.5mm Analogue Cable
  • USB-C Cable
  • Travel Case
What you need to know
  • Over-ear design with padded gyro-suspended earpads for comfort and sound isolation
  • All-digital adaptive active noise cancelling provides pure, focused listening in any environment
  • Super soft fabric and leatherette earpads offer ergonomic support for long wear
  • Built-in microphones with cVc technology keep calls clear and natural
Audio Performance & Sound Quality
  • Graphene-infused 40mm drivers deliver crisp, powerful hi-fi sound for music and movies
  • PSB’s "True-to-Nature" sound signature offers rich, natural audio across all genres
  • Next-generation RoomFeel technology mimics the experience of listening to speakers in a well-tuned room for open, realistic sound
  • Personal Sound calibration with Audiodo creates a custom hearing profile for each ear, correcting anomalies and optimizing clarity
  • Volume Dependent Compensation ensures timbral balance at any listening level
  • Four preset EQ modes, including RoomFeel, tighter bass, more detail, and better dialogue, let you tailor audio to your preferences
Noise Control
  • All-digital adaptive active noise cancelling (ANC) utilizes 4 digital MEM microphones to block unwanted noise
  • Adjustable transparency levels let you mix in your surroundings via the PSB Headphones App
Fit, Comfort & Design
  • Gyro-suspended earpads tilted at 15 degrees provide ergonomic support
  • Expandable headband with fabric inner cover for optimal comfort during long sessions
  • Folding design for convenient storage and travel
Battery Life & Charging
  • Up to 25 hours of wireless playback in Active Mode for day and night listening
  • Use either 3.5mm wired connection or USB-C for charging and playback when battery is low
  • Powerful rechargeable battery with USB-C charger lets you listen and charge simultaneously
Calls & Microphones
  • Built-in microphones plus two cVc microphones deliver crystal-clear call quality
Connectivity & Smart Features
  • aptX Adaptive Bluetooth ensures high-definition wireless audio with low latency
  • Bluetooth 5 compatibility for stable connectivity across devices
  • Compatible with iOS and Android for wide device support
  • Connects to the PSB Headphones App for control over sound settings, hearing profile, EQ, noise transparency, and battery status
Durability
  • Materials including super soft fabric and leatherette earpads combine durability and comfort
This description was generated by AI and reviewed for accuracy.

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Information about the manufacturer’s availability guarantee can be found .

Shipping Charges

Free standard shipping on all orders.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • No restrictions in Canada
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
See our return policy to find specific return information for this product and steps on how to return by mail.