Lose the noisePut the world on mute. Industry-leading digital noise cancelling cuts out ambient noise and adapts to your environment so you can hear more of the detail in every track. Now it's just you and the music. Love the bassEXTRA BASS™ enhances all your low-end frequencies, lifting every track with wave after wave of thundering rhythm. Just touch the button to get started. High-quality wireless listeningConnect easily to your favorite devices via Bluetooth with NFC and enjoy high quality wirelessly streaming with built-in LDAC™ enhanced codec support. Optimize your sound settingsSet the perfect sound for every song. Sony Headphones Connect app lets you adjust your bass levels and gives you presets for club, hall, arena or outdoor style sound. Enjoy broad frequency responseLarge, 40 mm driver units deliver broad, dynamic and balanced sound with 20-20,000 Hz frequency response when streaming wirelessly and 3-28,000Hz with the supplied audio cable. Easily take calls wirelesslyEnjoy the convenience of hands-free calling thanks to the integrated microphone and Bluetooth 1 connectivity. Simply press the phone button on the earpiece to accept incoming calls then press again to terminate the call. Music playback will automatically resume once the call is completed. Up to 22 hours of battery lifeThe built-in rechargeable battery provides up to 22 hours of continuous, wireless music playback. When your battery runs low, passive mode (using the supplied cable) allows for continued listening. Soft carrying case includedBring your headphones with you wherever you go with the convenience of a soft, protective carrying case.