Worn a few times and found that a newer model was released so upgraded even though they were only worn a handful of times LONG BATTERY LIFE: GO Air features 5 hours of playtime in each earbud and 15+ extra hours from the charging case (20+ hours total)Return to the case to recharge the buds, and use the integrated cable to charge the case.) SMALLER DESIGN: GO Air are 20% smaller than the JBuds Airgreat for smaller earsTry the three tip sizes to get a snug in-ear fit, creating a perfect seal for crystal clear soundThe pocket friendly case is great for on-the-GO. DUAL CONNEXT: Use either earbud independently or use both together. Both earbuds auto connect to your deviceso no need to worry about switching or missing a connection. A built-in MEMS microphone in each bud ensures clear calls. CUSTOM EQ³ SOUND: With just a few taps via touch sensors, you can choose your sound preference: Jab Signature, Balanced and Bass Boost modes - without an app. Hear the difference at jlab.com/EQ.