PSB M4U 4 Headphones 

Inside the M4U 4’s unique two-way driver design, the specially-constructed precision balanced armature driver used is individually calibrated to meet PSB’s testing benchmarks while utilizing a custom wave guide to link the driver’s internal sound tube to the woofer for a perfectly aligned driver integration. The moving coil dynamic woofer is no less unique, employing three individual chambers to smooth the response and create deep and accurate bass without being too boomy.

Warranty: 1 Year

SKU: M4U 4 Categories: ,


PSB M4U 4 High Definition In-Ear Monitors Headphones

These small and lightweight in-ear headphones are portable and designed for sound enthusiasts who demand the most from their audio gear. The ergonomic low-profile design uses an around-the-ear cable and custom silicone and Comply™ Foam ear tips to provide you with a secure and comfortable fit–no matter how active you get when listening. They also come with a clip-on travel case that provides added protection and convenience when storing and travelling with the earphones.

In the box, there are two fully detachable tangle-free cables so you can choose between a standard cable or one with an inline mic and three-button controls that let you adjust the volume, change songs, or answer incoming calls. ¼” (6mm) stereo and dual-input flight adapters are also included to give you the ability to hook up to your stereo at home and watch and enjoy movies while in the air. You can also clip the cables to clothing, or loop them behind your ears and out of the way.

In addition to the three sizes of soft silicone ear tips, the M4U 4 includes Comply™ Foam Tx-200 Series ear tips with an integrated wax guard for the most professional in-ear fit. Made with high-tech, super-soft memory foam that is heat sensitive and breathable, the Tx-200 ear tips mould to your ear canal to create an unparalleled seal and reduce ambient noises while improving directivity and enhancing the bass response.

  • Advanced two-way hybrid dual-driver design for deeper, more detailed sound
  • Small and lightweight with a secure around-the-ear cable design
  • Take calls and control your music easily with the three-button cable controls/mic
  • Fully detachable cables that connect to phones, stereos, and in-flight entertainment
  • Small, medium and large silicone ear tips for the perfect fit in any size of ear
  • Comply Foam™ Tx-200 premium ear tips also included for improved sound isolation


Additional information

Weight 1 lbs
Dimensions 4.3 × 2.7 × 0.98 in



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