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 Tubes™ 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 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. 8+16 hours of fast-charging battery life Never miss a beat with 8 hours of power in the earbuds and 16 in the case or 7+14 with Adaptive Noise Cancelling on. Need a quick boost? No worries—you can fast charge another 4 hours of battery life in just 15 minutes. Customize your sound controls Customize the all-access JBL Reflect Aero controls so you can manage your earbuds hands-free. When you download the JBL Headphones App, you’ll find a full range of customization options for each earbud. Tailor the EQ to match your audio preferences, choose your preferred Voice Assistant, choose whether to have Voice Prompts guide you, and more.