Engineered to deliver a thunderous audio experience and 25 hours of portable playtime with the charging case, Mode II produces phenomenal sound with no wires attached. Custom-tuned dynamic drivers create a highly detailed and precise sound experience with growling bass, natural-sounding mids and crisp treble. Experience the complete sound with mind-blowing clarity as if you were right there in front of the stage.Built for all-day listening, Mode II in-ear headphones are ergonomically designed to fit securely and comfortably