I purchased these used, in excellent condition, about a year and a half ago, but I haven't used them much and have kept them carefully stored. Operation confirmed. Accessories are as shown in the images. Returns are not accepted to prevent replacement fraud. In-ear headphones FD7 FIO-IEM-FD7-B Brand: FiiO Wearing style: For both ears, integrated left and right Headphone type: Canal type Structure: Semi-open Color: Black系 (Black-based) Wireless/Wired connection: Wired connection Headphone features: Hi-Res, Sound quality adjustment, Detachable cable Low-frequency range (Hz): 10.0 Hz High-frequency range (kHz): 40.0 kHz Impedance (Ω): 50.0 Ω Sound pressure sensitivity (db): 111.0 db Driver type: Dynamic type Plug shape: Mini plug, 2.5mm (4-pole), 5-pole terminal Driver size (mm): 12.0 mm Cord length (m): 1.2 m Weight (g): 11.0 g