The Sony WM-EX35 is a compact cassette player designed for portable use, featuring a sleek and lightweight design. It is equipped with auto-reverse functionality allowing continuous playback of cassettes without needing to flip them manually. The device includes a built-in digital tuner for reception of AM and FM radio broadcasts. Its sound quality is enhanced by Dolby Noise Reduction, which minimizes background noise and improves the listening experience. It offers various playback features including a repeat function and a choice of sound modes to tailor the audio output to the listener's preference. The unit operates on standard AA batteries, providing convenience and ease of use during travel. The cassette compartment has a transparent cover to easily check cassette status, and the device may include additional features like an LCD display to indicate playback status and battery life.