Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear | True Adaptive Noise Cancelling (4-mic) with Smart Ambient: Hear more of what you want and less of what you don't. True Adaptive Noise Cancelling (4-mic) technology with Smart Ambient automatically adjusts to eliminate audio distractions while keeping you alert to your surroundings, wherever you go. | 6 mics for zero noise for perfect calls with VoiceAware: You deserve to be heard. That's why 3 beamforming mics on each earbud ensure that your voice always comes through loud and clear, even on a breezy day. And you can hear it for yourself, since VoiceAware lets you control how much you hear your own voice during calls. | Extreme dustproof and waterproof: The IP68 dustproof and waterproof JBL Reflect Aero earbuds are the perfect companions wherever you go, regardless of weather conditions. Dust-tight for hikes and beach parties, they're also built to function for 30 minutes at depths of up to 1,5 meter/5 feet-including salt water, as long as you remember to rinse them off afterwards. | Comfortable, secure fit: Why are JBL Reflect Aero earbuds the perfect companions for all-day adventures? Because they're designed with comfortable Oval TubesTM and POWERFINS for a secure, tightly sealed fit whether you're at work or working out. Use the "Check My Best Fit'' test on the My JBL Headphones App to find your own unique fit. | JBL Signature Sound: Dynamic 6.8mm drivers power the soundtrack of your life with bold sound and rich bass whether you're deep in meditation or sweating it out at the gym.