PSB M4U TWM Earbuds

The PSB M4U TWM earbuds mark the entry for PSB in the high-end earbuds category M4U TWM with high fidelity and combine innovative technology with features that make the users’ lives comfortably. This comprehensive review examines their functionality, design, and innovative technology at play, giving you an unbiased insight about this device.

  • Great Sound Quality
  • Comfortable
  • Good Battery life
  • Best Durability
  • No Active noise cancellation
  • No Wireless Charging
  • Absence of Wear Sensors
  • Limited Call Features

PSB M4U TWM Earbuds Key Features and Performance

  • Sound Quality: The PSB M4U TWM earbuds are extremely accurate in sound delivery, the Magnetostatic technology with planar dual-driver system is responsible for it. This setup gives you standalone transducers for high and low-frequency outputs that are supported by a Bluetooth aptX Adaptive codec to provide a better sound transmission.
  • Comfort and Fit: With a comfortable and secure fit, these earbuds are specifically designed for extended listening sessions. The earbuds are ergonomically designed to guarantee they stay in place and therefore provide the user with an enjoyable listening experience without any discomfort.
  • Battery Life: This earbud has an excellent battery life. It supports 8 hours of playback time on a single charge and is charged using a smart USB-C charging case.
  • Durability: With an IP65 rating, PSB M4U TWM earbuds are developed to protect them against environmental factors so they are suitable for both indoor and outdoor use.
  • Controls: The very obvious hard-click buttons on both earbuds are easy to use, and they facilitate music control and hands-free voice calls. This factor has a positive impact on the user experience.
Driver TypeHybrid Planar Dual-Driver (Magneto-Static Tech)
Bluetooth CodecaptX Adaptive
Battery Life8 hours playback
Charging CaseUSB-C, Smart Charging
Water and Dust RatingIP65
Control TypeHard Click Buttons
Price200 USD

Advanced Technologies

  • Audiodo Personal Sound: This tech gives us an individualized sound experience by adjusting the audio according to the user’s own hearing profile. It analyzes each of your earlobes separately, and then gives a higher quality hearing guidance, according to a user’s hearing conditions.
  • Room Feel Technology: Another major innovation by PSB M4U TWM is called Room Feel technology which amplifies tones, enhances clarity, and creates the impression that a listener is in a room that is specially set for listening with a high-quality speaker sound. This technology makes the music not sound like something comes through the mind but like a live gig.

Our Take


  • Great Sound Quality: The earbud’s dual-driver technology and adaptive AptX provide a deeper bass and a crisp sound that features all the details of the music.
  • Comfortable: Its sleek design as well as isolated sound technology, make sure the music lovers experience their music environments without any external distractions.
  • Battery life: With 8 hours of total playtime, you can truly take these earbuds for travel, long commutes, or extended listening sessions.
  • Durability: The earbuds have a heavy build, making sure they withstand heavy weather conditions.


  • No Active noise cancellation: There are no Active Noise Cancellation and transparency features in PSB M4U TWM earbuds which might hurt sales among ANC fanatics.
  • No Wireless Charging: There is also no wireless charging function provided.
  • Absence of Wear Sensors: there are no wear sensors and the earbuds cannot automatically pause or play audio when taken off and inserted again.
  • Limited Call Features: The absence of a side tone for calls and the lack of a direct equalizer for sound adjustment may have a negative impact on voice call quality and user experience.

The PSB M4U TWM earbuds are a great choice for users who want supreme sound quality. Although they may not have some of the features that competitors in similar price brackets provide such as ANC and wireless charging, the unique feature of personal sound technology through Audiodo together with the superior sound quality and comfort make them a great choice for both audiophiles and casual listeners. If you are a sound quality fanatic and are not too strict about missing some of the features, the PSB M4U TWM earbuds produce excellent performances and value that other earbuds cannot beat.

Editors Recommendations

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