Small and light, a great fit Designed small (45% smaller than the WF-XB700), these buds fit securely and comfortably in your ears. The rounded shape without edges makes them a pleasure to wear, leaving you free to focus on what matters – your music. Ergonomic Surface Design The WF-C500 headphones combine a shape that matches the ear cavity with a new ergonomic surface design for a more stable fit. Make your music more natural DSEE restores high frequency sounds lost in compression. Go anywhere, pocket-sized case The cylindrical charging case is extremely small and easy to carry around in a pocket or bag. Splashes and sweat, no problem With an IPX4 water resistance rating, splashes and sweat won’t stop these headphones – so you can keep on moving to the music. Clear hands-free calling Conversation flows freely with easy hands-free calling, now clearer than ever with a high-quality built-in microphone. Ideal for multitasking If you want to listen to your music while still being able to have a conversation, remove one earbud only from the charging case and use as normal. Easy button operation The buttons let you play, stop, or skip through tracks and adjust the volume. You can also access your smartphone’s voice assistant. So immersive. So real. As if you are there at a live concert or with the artist recording in a studio. With 360 Reality Audio, music has never been so immersive and so real. Sony | Headphones Connect app Your sound, just how you like it. Fine-tune your sound using the Sony | Headphones Connect app.