Selling to organize my belongings. Purchased new and used several times. Functionality has been confirmed. All accessories are included. The case shows signs of use and peeling. The main body has no scratches. The ear pads have been replaced with new ones, and the speaker area has been cleaned. It has not been used since then. Supports High-Resolution Audio: Compatible with high-resolution audio sources, enabling high-quality music playback via wired connection. Features Reproduces frequencies far beyond the audible range, up to 100kHz Newly developed 40mm driver unit for wide-band reproduction Employs an aluminum-coated LCP diaphragm Beat Response Control for accurate reproduction of deep bass rhythms Comfortable fit Ergonomic three-dimensional stitched ear pads Enfolding structure for a wrap-around fit Silent joint to reduce play in moving parts Inward axis structure Silver-coated OFC wire Independent ground cable Detachable cables for versatile use Supports balanced connection with optional cables Improves separation of left and right channels and supports balanced connection, which is resistant to noise Swivel mechanism for easy storage Carrying pouch included for convenient portability Cable with microphone/remote control for smartphones Xperia™-exclusive (*) "SmartKey app" to customize remote control settings None Headphone Section *1Type: Closed-back dynamicDriver Unit: 40mm, dome typeSensitivity: 105dB/mWMagnet: NeodymiumFrequency Response: 3-100,000HzImpedance: 24Ω (at 1kHz)Maximum Input *2: 1500mW (IEC)Cord Length: Approximately 1.2m, silver-coated OFC wireCord Type: Single-sidedInput Plug: Gold-plated L-shaped stereo mini plugWeight *3: Approximately 225g (excluding cable)Microphone SectionType: Electret condenserDirectivity: OmnidirectionalEffective Frequency Band: 20Hz-20,000HzOpen Circuit Voltage Level (0dB=1V/Pa): -40dB (0db=1V/Pa) *1 Products with a receiver include the receiver section *2 Measured according to IEC (International Electrotechnical Commission) standards. *3 Does not include the cord Currently discontinued. Iyorie Shimizu of back number used the same color. No claims, no returns.