• Unused and unopened (still in the bag) • No noticeable scratches or stains. Product Details/Features This cable is a conversion/extension cable compatible with 3.5mm 4-pole stereo mini plugs. 1. 4-pole compatible: Supports not only stereo audio (left and right) but also microphone functions and remote control operation. 2. Uses: • When you want to extend the cable of a headset or earphones with a microphone. • (From the photo's note) When you want to use the 3.5mm output terminal of a TV or audio equipment as a 4-pole earphone jack. • Can be used with various 3.5mm terminal devices such as PCs, smartphones, tablets, and portable audio devices. 3. Shape: • One side: 3.5mm 4-pole plug (male, the side to be inserted) • The other side: 3.5mm 4-pole jack (female, the receiving side) ⚠️ Important Notes • Please confirm that your device supports the 4-pole plug standard (CTIA/OMTP, etc.) before purchasing. • There is a note about watching TV, but it can also be used as a general audio extension cable.