The box has some damage. It was used a few times and then stored in a box in a dark place. The included pads are unused. It will be shipped in a cardboard box. Since this item is entrusted by a family member, it may take some time to respond to comments. ■ Equipped with a "bass tube function" that balances the entire frequency range by suppressing the expansion of the low frequencies. By making the sound clearer, the sound resolution is improved, and even delicate sounds can be heard clearly. ■ The housing is an around-ear type that covers the ears. In addition to excellent sound insulation, it prevents sound leakage from the headphones, and prevents the microphone from picking up the headphone playback sound during recording. ■ The headband is equipped with a "mute switch mechanism" that automatically mutes the playback sound when removed from the head. This prevents unnecessary sound leakage in recording environments. ■ AKG headphones use their unique acoustic technologies, "VariMotion Technology" and "Two-Layer Diaphragm". ＜Specifications＞ ■ Headphones ■ Type: Dynamic, closed-back ■ Frequency Response: 16～28,000Hz ■ Impedance: 55Ω ■ Sensitivity: 91dB/mW ■ Maximum Input Power: 200mW ■ Weight: Approximately 240g ■ Cable: Detachable, 3.0m single-sided straight cable, curly cable (maximum 5.0m when extended) ■ Accessories: 6.3mm stereo conversion plug, velour ear pads