PSB M4U 4 High Definition 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.

The M4U 4 is ergonomically designed to be comfortable even when worn for long periods of time. The cord is detachable and the in-ear-monitors are reversible. The user has a choice of looping the cord over and behind their ear, or they can swap the left for right color-coded cord to allow the cord to drop down in front of the ear.  

Three sizes of soft inserts are included to fit any size ear canal, and two types are provided; soft silicone and Comply Foam™ with wax guards. Comply foam is extremely comfortable, precisely fitting the individual ear canal and forming an air-tight seal that blocks outside noise and provides amazing bass extension. Silicone tips are also comfortable and can be cleaned and reused indefinitely. 

The M4U 4 includes a semi-hard travel case, a unique detachable cord with a removable shirt clip, two tangle-free cords, one made for iPhone with microphone and telephone controls as well as a 1/4 inch and dual 1/8 inch airplane adaptors.

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.

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