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PSB M4U 4 High Performance In-Ear Monitors

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PSB gets up close and personal with your hi-fi. We've taken over 40 years of bringing real sound to real people and packed it into our exciting M4U 4 High Definition In-Ear Monitors. You're listening to music more than ever before, but now you can do it on-the-go in comfort and style with PSB's true-to-nature sound quality. The M4U 4 High Definition In-Ear Monitors are the latest addition to our popular M4U Headphone Series with PSB's very own innovative RoomFeel™ Technology that has won praise throughout the world.

Good Sound Comes in Small Packages
With scientifically developed RoomFeel technology, you will be amazed that these in-ear M4U 4s allow you to experience the sound of high performance speakers in a perfect listening room wherever you go. The M4U 4 features a two-way Hybrid Dual-Driver System of dynamic and balanced armature drivers for true hi-fi listening.

Ergonomically Sound
These small and lightweight portable in-ear monitors are also designed for convenience for people on the move. The comfortable low profile ergonomic design and around-the-ear cable placement ensures that the M4U 4s stay in place for active listeners. Two fully detachable cables are included, one with a 3-button Apple remote with microphone for answering and making phone calls.

Comply™ Foam Tx-200 Series Eartips
The M4U 4 is supplied with Comply™ Foam Tx-200 Series Eartips for perfect in-ear fit and comfort. Made with high-tech, super-soft memory foam that is heat-sensitive and breathable, the Comply™ Foam Tx-200 Series Eartips conform to the dynamic shape of the ear canal. The foam's passive noise-reduction technology seals out unwanted ambient noise and pours pure music directly into your ears, without leaking bass. These eartips are extraordinarily soft and comfortable for long-term wear. Simply enjoy clear, crisp sound.

Standard silicon gel tips, a convenient carrying case, and stereo and airplane adaptors round out the M4U 4 accessories. Available in Arctic White and Black Diamond.


  • Two-way Hybrid In-Ear design
  • Moving Coil Dynamic Low Frequency driver and Balanced Armature High Frequency driver
  • Precision crossover network
  • Two tangle-free cords, one with microphone and telephone controls
  • Unique detachable cords with removable shirt clip
  • Made for iPhone certified
  • ¼” Stereo and 1/8” dual input flight adaptors
  • Small, medium and large pure silicone ear tips supplied
  • Small, medium and large Comply™ Foam Tx-200
  • with wax guard supplied
  • Semi-hard travel case (W x H x D) 21 3/8 x 3 3/8 x 13”
In-Ear Headphones
In-Ear Headphones

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