Bluetooth. 20+ hour of playtime (Battery: 20+ hours total, 5 hours in earbuds (43mAh per earbud) (Medium volume), 15+ hours in charging case (370mAh)). Goes with smart assistants android + apple. Smallest fit ever. Dual connect. Touch sensors. Long Battery Life: Listen for the long battery life; stay for the comfort. Go Air features 5 hours of playtime in each earbud and 15+ extra hours from the charging case. That's 20+ hours of playtime. Recharge hassle-free with the charging case and integrated charging cable. Smaller Design: Go Air are 20% smaller than the JBuds Air. This means a slimmer profile, great for smaller ears. A longer earbud stem provides a snug in-ear fit, creating a perfect seal for crystal clear sound. The pocket friendly case features an integrated charging cable for on-the-go. Dual Connect: Use either earbud independently or use both and experience a seamless connection no matter the situation. Both earbuds auto connect to your device, so 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 tap or two via touch sensors, you can choose the sound to match your personal preference between: JLab Signature, Balanced and Bass Boost modes - without an app. Hear the difference at jlabaudio.com/EQ. Custom EQ3 Sound: Quick press 3x button for different EQ setting. JLab Signature: JLab C3 signature sound with amplified vocals and bass. Balanced: Even sound with no additional sound enhancements. Bass Boost: Amplified bass and sub-bass. Integrated charging cable. Speaker: 8 mm drivers. Battery: 20+ hours total, 5 hours in earbuds (43mAh per earbud) (Medium volume), 15+ hours in charging case (370mAh). Bluetooth: Bluetooth 5 - 30 ft range. Touch controls: L -R. Volume: 1 tap. Track: Press & Hold 1+ sec. 2 Tap: Siri google. Play pause. EQ Settings: 3 Tap (Go Air will cycle 3 EQ settings). Charging case. Go Air. Universal mic with volume + track control. Gel cushion tips + quick start guide. Limited lifetime warranty. Satisfaction guarantee 30 day. Provided directly by JLab Audio. CE listed. BC. Jlabaudio.com. jlabaudio.com/EQ. (hashtag)FindYourGo. For help with your product or to elevate your experience further visit jlabaudio.com. Official audio partner Major League Soccer. Recyclable packaging. Designed in California. Assembled in China.