The Sony MDR-XB50BS are Bluetooth and NFC enabled wireless in-ear headphones specially designed for sports training. They are enhanced with Sony's powerful Extra Bass sound to give you added drive. With a built-in volume control and microphone you are in total control of your music whilst staying connected. Wireless headphones With Bluetooth and NFC wireless connectivity options you can be free from trailing wires as you workout. Bluetooth pairing is easy - simply search for the MDR-XB50BS on your Smartphone or tablet and pair up to stream playlists across a 10 metre range. Alternatively, the convenience of one-touch NFC allows you to 'tap' your Smartphone to the headphones for an instant, seamless connection. Designed for sport These Sony headphones are sweat and splash resistant which makes them ideal for workouts or running in light rain. Functional design Thanks to the ear-piece controls, you can take full control of your music. There is even an integrated microphone which works with the remote for answering phone calls, hands-free. And with a battery life of up to 8.5 hours, the Sony MDR-XB50BS headphones offer plenty of motivation to help you through your workout.