The MDR-ZX750BN Noise-Canceling Bluetooth Wireless Headphones from Sony allow you to stream audio wirelessly from your Bluetooth compatible smartphone or other device. They 40mm drivers and are NFC compatible, allowing you to pair them to compatible devices simply by touching them together. Their noise cancelling function helps reduce background ambient noise, while their swivel folding style allows for portability. Bluetooth and NFC for one-touch connection with your compatible smartphone. Digital Noise Cancelling to block out ambient noise. Beat Response Control for enjoyment of tight and deep bass.