Audio-Technica SOLID BASS ATH-CKS1100 I received these as a gift about 10 years ago and haven't used them much. They are in beautiful condition, with no noticeable scratches or stains. The cord is not sticky, and there is no deterioration of the resin parts. The operation is good, with no problems. Accessories include a storage case, ear tips, instruction manual, and warranty card. The storage case is unused, but there is some deterioration. Please check the images. The spare ear tips are unused. Please check the box for damage in the photos. Price negotiations are only available for those who can purchase immediately. Body weight: Approximately 14g (excluding cord) Type: Canal type Connection terminal: φ3.5mm mini-plug Sensitivity: 110dB/mW Playback frequency band: 5～40000Hz Maximum input: 200mW Impedance: 12Ω High-resolution sound source: High-resolution audio compatible Waterproof/splash-proof: Not waterproof/splash-proof