Extended Playtime: Enjoy up to 36 hours of music with soundcore K20i. A quick 10-minute charge gifts you an additional 2 hours of playback, so you're always ready to dive into sound, anytime, anywhere. Clear Sound: soundcore K20i earbuds are engineered with a 13mm dynamic driver and innovative torus design, coupled with BassUp technology, ideal for podcasts. Semi-In-Ear Comfort: Crafted with a semi-in-ear design, and weighing a mere 3.3g, these Bluetooth wireless earbuds stay secure in your ears without the need for ear tips, offering a snug fit that feels light and comfortable all day long. Clear Call Quality: soundcore K20i earbuds feature AI-powered noise reduction technology that precisely isolates your voice from background noise. With dual-mic ENC, maintain pristine call clarity even in bustling environments. Personalized Sound: With 22 preset EQ settings and customizable EQ options via the app, these semi-in-ear wireless earbuds let you sculpt your sound to fit your personal taste.