JBL Pure Bass sound For around 70 years, JBL has engineered the precise, impressive sound found in big venues around the world. These headphones reproduce that same JBL sound, punching out bass that's both deep and powerful Powerful, pure bass sound. Now in a takeaway version. Introducing JBL T205 earbud headphones with JBL Pure Bass Sound. They're lightweight, comfortable and compact. Under the premium metalized housing, a pair of 12.5 mm drivers punch out some serious bass, while the soft, ergonomically shaped earbuds ensure the listening experience remains comfortable for long-listening hours. In addition, a single-button remote lets you control music playback, as well as answer calls on the fly with the built-in microphone, making the JBL T205 your everyday companion for work, at home and on the road.