Up for sale is my pair of Sony Wireless Headphones. I'm doing a headphone purge in order to pay for my Susvara's and I don't use my Noise Cancelling headphones as much as I should. They look and sound great. They have a very similar feature set to the xm3 and xm4.

Comes with Inner Box, Case, USB Micro Charging Cable, 3.5mm Audio Cable for Direct Listening, and Airplane Adapter.
$79 + Free Shipping to CONUS

Here are some specs:

General Features​

• 
  
  • INPUT(S)
    Micro USB, Stereo Mini Jack
  • FREQUENCY RESPONSE (BLUETOOTH® COMMUNICATION)
    20 Hz–20,000 Hz (44.1 kHz Sampling)/20 Hz–40,000 Hz (LDAC 96 kHz Sampling, 990 kbps)
  • MAGNET
    Neodymium
  • NFC
    Yes
  • IMPEDANCE (OHM)
    46 ohm (1 kHz) (when connecting via the headphone cable with the unit turned on), 14 ohm (1 kHz) (when connecting via the headphone cable with the unit turned off)
  • PASSIVE OPERATION
    Yes
• 
  
  • FREQUENCY RESPONSE
    4 Hz-40,000 Hz
  • DSEE HX
    Yes
  • CORD TYPE
    Single-sided (detachable)
  • DRIVER UNIT
    1.57", dome type (CCAW Voice Coil)
  • DIAPHRAGM
    Aluminum coated LCP
  • SENSITIVITIES (DB/MW)
    103 dB/mW (1 kHz) (when connecting via the headphone cable with the unit turned on), 98 dB/mW (1kHz) (when connecting via the headphone cable with the unit turned off)
  • Bluetooth® Specification
    

    SUPPORTED AUDIO FORMAT(S)​

    SBC, AAC, aptX, aptX HD, LDAC
    
    Bluetooth Version 4.1
  • AUTOMATIC AI NOISE CANCELING
    Yes
  • NOISE CANCELING ON/OFF SWITCH
    Yes