Thank you for viewing. The headphones have been tested and are in working order. The product is used. Please check the condition of the product in the photos. Simple cleaning has been done, but it is not perfect. Please refrain from purchasing if you are sensitive to imperfections. The reference price on Amazon is 26,800 yen. How about taking this opportunity? If you have any questions, feel free to chat. We will also respond to price negotiations as much as possible. 〈Product Description〉 Equipped with a digital noise canceling function that cancels out surrounding noise even in noisy places such as vehicles and city streets, allowing you to concentrate on your music. Sony's proprietary "DSEE" technology complements the high frequencies that tend to be lost in compressed sound sources within the headphones to CD quality. Supports Bluetooth codecs LDAC, aptX HD, aptX, and AAC, which provide less sound quality degradation even wirelessly. In addition to the "Noise Canceling Mode," there is also an "Ambient Sound (External Sound Input) Mode" that allows you to listen to the surrounding sounds while enjoying music by taking in the surrounding sounds with a microphone placed on the outside of the headphones, and a "Quick Attention Mode" that temporarily lowers the volume of the music and takes in the surrounding sounds while touching the entire touch sensor, allowing you to hear the sounds more easily. You can switch to a variety of listening environments to suit the situation. With the dedicated smartphone app "Headphones Connect," you can adjust the amount of bass and customize sound effects to change the sound to your liking. WIRED WIRELESS color: BLUE Cordless type: Additional HP Driver unit: Dynamic Noise canceling: Yes Band type: Headband type Headset attribute: Mobile phone Headphone type: Sealed HP Microphone: Yes Transmission type: Bluetooth External sound input function: Microphone type Folding shape: Swivel + Folding Voice assistant function: Yes #Sony #SONY Color: Black Connection type: Wireless/Wired Noise canceling: Yes