MDR-1000X Sony Premium Noise Cancelling, Bluetooth Headphone Features Isolate yourself from external noise with industry-leading noise cancellation* One of the top noise cancelling performance* features a personal noise cancelling optimizer that adapts to your environment and eliminates noise in all conditions. Footnotes: *Ambient noise reduction based on Sony testing of Sony 1000X, Beats Studio wl and Bose QC35 with JEITA noise cancelling standard. Enjoy Bluetooth Wireless Connectivity And Hi-Fi Quality Audio Connect easily to your favorite devices via Bluetooth with NFC and enjoy a near Hi-Res experience when wirelessly streaming your music with built-in LDAC enhanced codec support. Listen To Ambient Sounds Quickly and Clearly The Quick Attention function let you instantly hear conversations and your surroundings by simply cupping your hand over the right earcup of the headphones. Features Hear Music at Its Best with Hi-Res Audio (Wired) The 40 mm high sensitivity driver with a frequency response up to 40kHZ delivers Hi-Res Audio playback, so you can hear every detail just like the artist intended. Listen Longer The built-in rechargeable battery provides up to 20 hours of continuous, wireless music playback. Control Everything by Touch Intuitive, easy to use touch controls allow for easy Play/Stop, track control, and volume adjust via the touch sensor control panel mounted on the housing of the right ear cup of the headphones. Features Catch Important Sounds With Ambient Sound Mode Ambient sound mode (Normal Mode) makes it possible to Hear essential everyday sounds, such as traffic, while still listening to music in the background. Listen To Music without Missing Announcements Ambient Sound Mode (Voice Mode) lets you to listen to your music without distraction, while still catching important announcements. Easily Take Calls Wirelessly Enjoy noise and hands-free calling thanks to the integrated microphone and Bluetooth profile connectivity. When receiving a call just tap on the right earcup of the headphones to answer your call and tap again to hang up