The Sony WM-FQ01 is a portable cassette player with FM/AM radio functionalities, designed for audio playback and personalization on the go. This device is part of Sony's legacy of compact audio solutions that combine both mobility and versatility. It features a built-in speaker, allowing users to enjoy music or radio broadcasts without needing headphones. The player supports standard cassette tapes and typically incorporates features such as auto-reverse for uninterrupted playback, as well as an option for adjusting the sound through bass and treble controls. As with many of its contemporaries, the WM-FQ01 is powered by AA batteries, facilitating easy replacement and long-lasting usage while on the move. The design often includes a compact body, lightweight construction, and an ergonomic layout for user-friendly operation. This cassette player presents a nostalgic choice for those who appreciate analog audio formats. Common specifications might include a frequency range for FM (87.5 - 108 MHz) and AM (530 - 1700 kHz), with a sensitivity of around 18 dB for improved reception. In terms of audio features, users can typically expect a headphone jack for private listening and built-in controls for tuning and volume adjustment.