With the WI-C200 Wireless In-Ear Earphones from Sony, you can enjoy the freedom of listening to your favorite albums or podcasts while your smartphone or tablet remains safely tucked away. The C200 earphones stream audio from your compatible mobile device via Bluetooth technology and can play for up to 15 hours straight on a full charge. The earphones are connected via a convenient behind-the-neck style cable and the earbuds are magnetic. Just snap them together when you're not listening to wear them around your neck.