This is the LAT-FMWS01SV FM transmitter model, compliant with "Designed for Walkman®" and compatible with the "WM-PORT" of Sony Walkman® devices. - Brand: Logitec - Model: LAT-FMWS01SV - Type: FM Transmitter - Company: Logitec CORPORATION - Connectable Devices (Output): Walkman A Series (NW-A916, NW-A918, NW-A919, NW-A919/BI, NW-A828, NW-A829, NW-A829/N, NW-A805, NW-A806, NW-A808) Walkman S Series (NW-S615F, NW-S616F, NW-S715F, NW-S716F, NW-S718F) - Transmission Frequency: (88.3MHz / 88.5MHz / 88.7MHz / 88.9MHz) - External Dimensions: W42 x H35 x D11mm - Power Interface: USB miniB (5V) (Please check the product website for details) Thank you for viewing. The item includes only the main unit. (The Walkman and power cable in the photos are not included) I have confirmed that the audio source played on my own Walkman (NW-A808) is received and heard correctly on the FM radio for each transmission frequency. However, it is an old item (around 2009), so please consider this before purchasing.