I have a pair of Audio-Technica CKS50TW Earphones for sale. Originally bought from japan. Now for sale in the states for $149 plus tax. Get them $100 plus shipping. Excellent like new in shape. I'll add that I really like them. No issues just really not much time in the hobby anymore so I am selling off most of my stuff. They have plenty of features...

• Newly developed 9 mm drivers deliver clear, full-range audio with the punch of enhanced bass
  
  
• Best-in-class battery life with up to 20 hours of continuous playback on a full charge (and up to 90 minutes of use from a 10-minute quick charge)
  
  
• Multipoint pairing function allows you to stay connected to two Bluetooth devices at once
  
  
• Buttons in the earbuds provide easy control of music playback, volume, calls, and hear-through and noise-cancelling functions
  
  
• Low latency mode improves synchronicity between audio and video for smooth streaming and gaming
  
  
• Hybrid eartip structure combines hard and soft silicone material to provide a secure, comfortable fit with superior sound performance
  
  
• Selectable hear-through function lets in ambient sounds so you can remain aware of your surroundings
  
  
• A-T Connect app gives you additional control: activate low latency mode, adjust and save EQ to the headphones, change L/R volume balance, locate misplaced headphones, change codecs, and more
  
  
• Flexible dual- or single-ear usability
  
  
• Automatic power-on when removed from the case
  
  
• Google Fast Pair lets you quickly pair headphones with an Android smartphone or other device
  
  
• Qualcomm® cVc™ Generation 8.0 ensures excellent call quality
  
  
• Sidetone circuitry improves conversations by letting you hear your voice in the headphones when making calls on most smartphones
  
  
• Compatible with high-quality Qualcomm® aptX™ Adaptive audio, Qualcomm® aptX™ audio, and AAC codecs
  
  
• Compatible with Sony’s 360 Reality Audio for a truly immersive sound experience
  
  
• Rain and water splashproof design (IPX4*-equivalent)

https://www.audio-technica.com/en-us/ath-cks50tw

Price is $109 with shipping and Paypal included. PM with any inquiries.