These sporty headphones are made to withstand a rigorous workout routine, with a durable fabric cord and IPX7-rated construction that's both water- and sweat-resistant. They stream audio via Bluetooth 5.0 from a compatible mobile device, such as your smartphone. If you pair it with your phone, you can take advantage of the built-in microphone for hands-free calls. Whether you use the Tarah Pro for audio or calls, you get multiple methods of control by using either the in-line remote, your own voice via Siri or Google, or through the Jaybird app.