I bought a new item and only used it a little, but there are scratches from plugging and unplugging. ● It can transmit music from a music player with a φ3.5 earphone jack to an FM radio, allowing you to listen through your car speakers. ● Supports 3-band frequencies: 87.9/88.1/88.3MHz. ● Equipped with a power-on confirmation monitor lamp (blue). ● Cord length: approximately 80cm ● Includes a fuse (built-in type, non-replaceable) https://www.yacjp.co.jp/products/detail/377