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

Yamaha RX500a AVR

A/V Receivers & Preamp/Processors

Yamaha’s RX300A and RX500A AV receivers start at $399 with HDMI 2.1, room correction, streaming, and a cleaner entry level design.

2026 Yamaha YHT-4970U Home Theater in a Box System 2026 Yamaha YHT-4970U Home Theater in a Box System

New Products

Yamaha’s $700 YHT-4970U bundles an RX300A AVR, 5.1 speakers, subwoofer, Bluetooth, and upgrade options as a real soundbar alternative.

Audio-Technica AT-VMN95EBK Turntable Audio-Technica AT-VMN95EBK Turntable

New Products

Audio-Technica expands its VM95 Series with the $74 AT-VM95EBK cartridge and $109 headshell combo kit for affordable vinyl upgrades.

Elipson Prestige Facet II 6 Active BT Promo Image Elipson Prestige Facet II 6 Active BT Promo Image

New Products

Can one system do it all? Elipson’s Prestige Facet II 6 Active BT adds HDMI ARC, aptX HD, and a phono stage to simplify...

Noble Lu Ban IEMs Noble Lu Ban IEMs

IEMs

Can Noble’s $1,400 Lu Ban IEM with wooden dynamic and planar drivers sing at CanJam Singapore 2026? Noble Audio is betting on it.

Audio-Technica AT-CAP4 Multi-Function Cartridge Alignment and Stroboscope Disc Audio-Technica AT-CAP4 Multi-Function Cartridge Alignment and Stroboscope Disc

New Products

Audio-Technica launches new turntable accessories for cartridge alignment, platter speed calibration, phono cables, and headshell wires.

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

A/V Receivers & Preamp/Processors

For those who think AV receivers are lacking in functionality or performance, Marantz has a solution for you, and it won't break the bank.

New Products

SOUNDPEATS Air6 HS wireless earbuds offer LDAC, spatial audio, long battery life, and a comfortable fit for under $40, challenging typical budget options.

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.

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.