High-performance in-ear headphones

  • Sale
  • $ 249
  • Regular price $ 299

PSB gets up close and personal with your hi-fi. 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 PSB's popular M4U Headphone Series with their very own innovative RoomFeel™ Technology that has won praise throughout the world.


  • RoomFeel technology allows you to experience the sound of high performance speakers in a perfect listening room wherever you go
  • Two-way Hybrid Dual-Driver System of dynamic and balanced armature drivers for true hi-fi listening
  • Small and lightweight portable in-ear monitors are also designed for convenience for people on the move
  • 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
  • Features 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
  • Eartips conform to the dynamic shape of the ear canal
  • Passive noise-reduction technology seals out unwanted ambient noise and pours pure music directly into your ears, without leaking bass
  • Standard silicon gel tips, a convenient carrying case, and stereo and airplane adapters round out the M4U 4 accessories
60-Day Money-Back Guarantee

We want you to love every item you purchase from SKY by Gramophone. If you are not satisfied with your purchase, you may return items that are complete and like-new for any reason within 60 days. You may choose an exchange or a refund for the full amount of the items you purchased*. Refunds must be issued to the same credit card, debit card, gift certificate, or other form of payment used in the original transaction.

SKY by Gamophone is an authorized dealer for all products we carry, which means manufacturer warranties are valid on every product purchased from us.

*Restocking fees apply for furniture, as well as for products without original packaging, missing accessories, and not in new or like-new condition.

(TVs excluded)



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