Connect with us

Hi, what are you looking for?

New Products

PSB’s M4U TWM Earbuds Featuring Audiodo Personal Sound Are Finally Shipping

For $199, the PSB T4U TWM wireless earbuds calibrate their sound to match the listening capabilities of each ear.

PSB M4U TWM wireless earbuds with case black

Almost a year after they were previewed at AXPONA 2023, PSB has announced its M4U TWM wireless earbuds are now available in the U.S. for $199 and in Canada for $299.

With so many wireless earbuds under $200 currently in the market, PSB had to do something really different to make the new M4U TWM earbuds stand out and based on our initial experience with them last year — there are some features that might prove to be very useful for those with some form of hearing loss; and that applies to members of the Hi-Fi press as well.

PSB M4U TWM wireless earbuds black

Features

Sound Optimization with Audiodo Personal Sound

This technology uses algorithms that allow listeners to calibrate their headphones or earbuds so that they match the listening capabilities of each ear. After completing a hearing assessment accessed through the PSB Headphones App, Audiodo Personal Sound maps a precise profile of the listener’s hearing. It calculates what changes need to be made based on personal sound perception, and formulates a compensation curve for the listener that can be applied to the overall headphone sound.

Natural RoomFeel Tuning

RoomFeel technology mimics the experience of listening to a pair of high-quality, full-range speakers. 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). Instead of a traditional ‘in the head’ headphone listening experience, RoomFeel creates an open and natural experience more typical of listening to actual speakers placed in a room.

​PSB Headphones App

The PSB headphones app provides access to all earphone settings, including Audiodo Personal Sound tests, transparency modes, battery levels, and the latest firmware updates and codes when provided.

Additional Features

  • Magneto-Static, Hybrid Planar dual driver design.
  • Fit: In-ear lightweight secure fit suits any active lifestyle.
  • Voice Assistant Support: Activate voice assistants or use hard-click buttons for hands-free calling and music control.
  • Bluetooth: Wireless auto-pairing with any Bluetooth enabled device.
  • Additional PSB technologies: RoomFeel, Audiodo, and cVc (clear voice capture).
  • Weatherproof Rating: IP65 rated for protection against sweat, dust, and weather.
  • Battery: Rechargeable with 8 hours of playback and 24 hours in the smart charging case for 32 hours of total extended playtime.
PSB M4U TWM wireless earbuds black in hand

Availability & Pricing

The PSB M4U TWM wireless earphones are available for $199 at Amazon or $299 at Amazon.ca.

Advertisement. Scroll to continue reading.

Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Advertisement

Latest Products

Fezz Audio Luna Integrated Amplifier Big Calm Maroon Front Angle

Integrated Amps & Stereo Receivers

Fezz Audio Luna brings Polish tube engineering, Toroidy transformers, bold finishes, and modern flexibility to U.S. hi-fi customers.

iFi Audio ZEN Air Phono 2 MM MC Preamplifier Lifestyle Stack iFi Audio ZEN Air Phono 2 MM MC Preamplifier Lifestyle Stack

New Products

iFi's ZEN Air Phono 2 adds MM and MC support with accurate RIAA playback and low noise, offering a flexible $129 upgrade for turntables...

Garmin JL Audio Primacy System Lifestyle Garmin JL Audio Primacy System Lifestyle

Music Streamers

Garmin’s JL Audio Primacy system combines streaming, room correction, MM/MC phono, Dante, and active speakers from $50,000. Is this the new luxury hi-fi formula?

YG Acoustics Titan Loudspeakers Pair YG Acoustics Titan Loudspeakers Pair

Floorstanding Speakers

7 feet tall and and weighing 1,000 pounds, YG Acoustics flagship 5-way loudspeakers come in fully active, semi-active or passive versions.

Devialet Phantom Ultimate 98 dB Roland-Garros Wireless Speaker Clay Splash Devialet Phantom Ultimate 98 dB Roland-Garros Wireless Speaker Clay Splash

New Products

Devialet’s Roland Garros Phantom Ultimate serves clay court style, deep bass, and French attitude in a limited edition wireless speaker. Voilà.

2026 Jamo Concert Legacy 11 Loudspeakers Heritage Finish Lifestyle 2026 Jamo Concert Legacy 11 Loudspeakers Heritage Finish Lifestyle

Floorstanding Speakers

Priced from $1,099 to $7,999 per pair, Jamo Concert Legacy and Element Series Loudspeakers preview August 2026 launch.

Gift Ideas?

Mother's Day Tech Gift Ideas 2026

Gift Guides

Upgrade Mom's audio experiences this Mother's Day with gift ideas she'll absolutely love -- and you might too.

You May Also Like

Blu-ray, DVD & 4K Media Players

At only $1,995, Strato M is Kaleidescape's lowest cost movie server/player, but there is a catch.

Articles

Our favorite projectors of 2025 offer the best picture quality and value at their price across UST, lifestyle and standard throw models.

New Products

Sony just brought its most powerful video processor for projectors down to what should be a much more affordable price point.

News

LG's wireless connectivity solution for its premium TVs just got third party certification for quality that matches hard-wired connections.

New Products

LG’s Micro RGB evo TVs aim to boost brightness and color beyond OLED, but can they justify a premium over models like the G6...

New Products

At $499, the Audeze LCD-S20 are the first planar magnetic headphones to feature the company's proprietary SLAM technology.

New Products

Balanced Armature and Dynamic drivers, hybrid active noise reduction, AI-powered Voiceloom speech enhancement, and more take the Status Audio Pro X wireless earbuds up...

News

The joint venture initially announced in January has entered its final stage. Here's what this might mean for fans of both brands.

Advertisement

ecoustics is a hi-fi and music magazine offering product reviews, podcasts, news and advice for aspiring audiophiles, home theater enthusiasts and headphone hipsters. Read more

Copyright © 1999-2026 ecoustics | Disclaimer: We may earn a commission when you buy through links on our site.