The BL1 is a warm sounding iem that is able to provide good bass rumble, laid-back midrange and sparkly treble. It packs details and the definition is great. The soundstage provides good width and moderate depth. In addition, the BL1 comes with a nicely braided cable. The Toneking BL1 is Toneking first planar iem in the lineup and it provides a pleasant listen.