Experience all your calls in outstanding clarity. Four microphones with noise cancellation and exclusive WindSmart technology capture your voice while filtering out wind and distracting background noises, ensuring your voice is loud and clear on every call. Enjoy lasting comfort even on long days with the smallest and lightest earbuds. The ultra-comfortable and uniquely designed ear tips provide a snug fit without going deep into the ear canal. With three different ear tip sizes, you always get a perfect fit that won’t slip. Dustproof, sweat-resistant, and waterproof to IPX4 means you can take calls or listen to music anytime and anywhere—even in rain and humidity. Additionally, you can store your earbuds in a sleek, portable charging case, allowing you to enjoy up to 13 more hours of music between charges. When you're in a hurry, a 10-minute quick charge gives you up to an hour of playtime. Plus, the earbuds automatically power on and connect to your mobile device when you take them out of the case—making it easy to answer a call or play your favorite song.