Hi-fi Stereo Deep Bass: Equipped with an advanced chip with AAC audio codex and premium 13mm dynamic driver, headphones deliver professionally-tuned immersive crystal-clear sound with a silky treble, smooth mid, and punchy bass at any volume.<br />Unique In-Ear Designed: Wireless earphones are designed with soft, flexible, and secure-fit ear hooks aimed at fully fitting your ears without falling out even for intense workouts.<br />One-Step Auto Pairing: After pairing once, it will be paired automatically, and you will be in your music world in a couple of seconds. In-ear headphones will turn off and charge automatically when they are put back into the charging case.<br />Touch Control: Each sport earbud has the function of answer/reject phone, volume adjustment, switch music, voice assistant. Free your hands completely when you’re busy doing exercise, bicycling, driving, or running. ">