Features 1.MP3 FORMAT: Cassette to MP3 converter quickly converts old cassettes to MP3 format via USB C cable. Also works with laptop CD burners. 2.TAPE PLAYER: More than just a tape recorder, it works perfectly as an old school tape player with any standard headphones. 3.5 MM AUX JACK: The cassette to MP3 converter works perfectly with any standard 3.5 mm AUX jack, which means you can use the sound port of your headphones, earbuds or car speakers. 4.CRYSTAL CLEAR SOUND QUALITY: The cassette to MP3 converter lets you enjoy the crystal clear sound quality of even the oldest bands by transferring tapes to MP3 in a quiet room. 5.TWO POWER SUPPLY METHODS: The portable cassette tape to MP3 converter has two power supply modes, supporting battery power (2 AA batteries, not included in the product) and USB C power. specificationItem Type: Cassette to MP3 Converter_x000D_ Material: ABS_x000D_ Color: Transparent_x000D_ Converter Format: MP3_x000D_ Power Supply: 2 x AA Batteries (Not Included), Any USB C Port Power Supply (5V DC Adapter, USB C from Computer, Etc.)_x000D_ Sound Channel: Stereo L/R PackageList1 xCassettetoMP3Converter1 x Earphone1 x USB Cable1 x Manual