I am selling this item because I purchased a new one and no longer need it. The box and the cable accessories are not included. Please check the photos and description, and feel free to contact me if you have any questions. Sony Store Retail Price: 7,700 yen (tax included) Features: * Clear sound quality with a good balance from high to low frequencies * Equipped with "DSEE" (*) which reproduces high frequencies of compressed sound sources clearly You can enjoy vocals and instruments with natural and clear sound, with a good balance from high to low frequencies. Furthermore, with Sony's proprietary technology "DSEE", the high frequencies that tend to be lost in compressed sound sources are compensated within the headphones to the equivalent of CD quality. It reproduces compressed sound sources such as streaming playback, MP3, and Bluetooth transmission codecs with a wide and good sound. * DSEE can be enjoyed by enabling the function from the "Sound Connect (formerly Headphones Connect)" app. * Compatible with the dedicated app "Sound Connect (formerly Headphones Connect)" "Equalizer" that allows you to customize your preferred sound quality You can select from 8 types of presets such as "Relaxed" and "Bass Boost", or customize your preferred equalizer settings. Instruction manual ↓ https://www.sony.jp/support/headphone/manual/wh-ch520.html