With this cassette to Mp3 converter, you can easily convert your old tape toMP3 without a computer you just need to plug UsB Flash disk (or UsB card readerwith SD card) on then press "record" button And the device will convert all of themusic on tape to your USB Flash disk in MP3 format automaticallyYou can also playback on it, or just put USB Flash to other place (computerportable speaker, or transfer to your mobile phone, iPod, etc. ) to play the recordedmusic.