Unmatched Comfort: AeroFit open-ear headphones utilize an open-ear, lightweight, and compact design to allow you to enjoy breathable listening. Aerofit gradually conforms to your ears, offering greater comfort the more you wear them. Balanced and Clear Sound: AeroFit's drivers feature composite diaphragms with titanium-coated domes so you can enjoy well-balanced sound with symphonic mids, an expansive soundstage, and crystal-clear highs. Crisp Calls with 4 Mics and AI: AeroFit open-ear headphones feature 4 mics and an AI Noise Reduction Algorithm to offer pristine call quality for everyday conversations. IPX7 Waterproof with SweatGuard: AeroFit leads in waterproof and sweatproof performance. Using soundcore's exclusive SweatGuard tech, nano-coating, and a unique chamber design, it provides total protection for critical components.