BSFM32 Series Flexible arm FM transmitter specifically for Walkman, featuring auto-scan function and USB charging port. - Model: FM Transmitter - Compatible Devices: For Walkman - Country of Manufacture: Made in Japan - Type: Flexible arm type - Features: Auto-scan function, USB charging port - Power: 12V dedicated Thank you for viewing. It's easy to use because it automatically plays in conjunction with the engine. In 2011, the price was 7400 yen (excluding tax) or 7770 yen (including tax). Although unused, it has been stored for a long time. https://japan.cnet.com/article/20425065/