The product is a vintage Sony Walkman Mega Bass FM/AM Radio-Cassette Player model WM-AF50. It features a black color and is part of the Walkman product line. The device is a tape player and radio combined, with a headphone jack for audio output. The cassette tape format is the playable media for this personal audio device. This Sony Walkman model offers a classic listening experience with its AM/FM radio capabilities and cassette tape player functionality. I don’t have a cassette to test buttons work, but I don’t see anything moving inside so selling for parts
eBay