Cassette Converter to MP3 WAV WMA AAC: Quickly convert old cassette tapes to MP3, WAV, WMA, and AAC formats so you can play your music on modern digital audio players, including recordings from older bands. USB Cassette Converter: This unit can be powered by a USB TypeC port, making it easy to connect to your PC or Mac and save MP3, WAV, WMA, AAC files directly onto your computer. Cassette Player with Speaker: Listen to tapes without headphones using the builtin speaker. It also features a 3.5 mm earphone jack, allowing use as an oldschool vintage cassette player with standard headphones for various occasions. Small size and lightweight: The device is compact and portable, and can be powered by two AA batteries as well. Take it anywhere, whether you're traveling, shopping, or enjoying music at home. Note: do not insert AA batteries when using the USB TypeC port.