[PREMIUM SOUND] The C171 earbuds provide crisp audio with an emphasis on well-balanced, high-quality sound levels. [BUILT-IN MIC] Enjoy crystal clear calls with the C171’s built-in microphone. [IN-LINE CONTROLS] Physical, in-line buttons allow you to play / pause your music, adjust the volume, skip / replay tracks, answer / reject calls, and activate your voice assistant – all without ever needing to touch your phone. [COMFORTABLE & SECURE FIT] Equipped with an earhook and soft eartips, the C171 provides a snug and comfortable fit that’s perfect for sports and active scenarios. [TYPE C JACK] With a Type C jack, the C171 is compatible with all USB C-enabled devices.