The Rai Penta is a mellow sounding iem that is able to provide controlled bass, soothing midrange and smooth treble. There is a relaxing and clear presentation which provides a fatigue-free listen. In addition, the Rai Penta has a beautiful design and solid build quality. It also comes with a premium cable. The Meze Rai Penta is the flagship IEM from Meze and it delivers an emphatic sonic display.