With the Sony MDR-ZX330BT, you can wirelessly listen to your favorite music. This gives you the freedom to listen to music anywhere in the living room, while your music player is lying on the couch. The on-ear headphones have Bluetooth and NFC. You can easily connect to your smartphone by holding it against the ear cup. Use the controls on the ear cup to change songs, control the volume, and answer phone calls. Your phone remains safely in your pocket while you're on the move and you keep your hands free during phone calls.