JBL Tune Flex Wireless Earphones in-Ear Intelligent Ambient Pure Bass 12mm Drivers for True Wireless Active Noise Cancellation The manufacturer offers four microphones with a 32-hour battery life in blue. You only feel the music. JBL Tune Flex With the JBL Tune Flex, take each song one at a time and tackle your day. You won't miss a beat thanks to the 32 hours of superb JBL Pure Bass Sound that these true wireless earbuds provide. You can block out distractions with Active Noise Cancelling, and four microphones all