• M4U 4 (B)
    (Headphones - In-Ear)

    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 the popular M4U Headphone Series with PSB's very own innovative RoomFeel™ Technology that has won praise throughout the world.