♬ Convert your old songs to MP3 using USB Cassette Player and use them on your computer. It has an easy-to-use software Audacity that converts music from tape to MP3 files ♬ The USB Cassette Player is a portable, hand-held that can be used with a variety of tapes ♬ Use a battery or USB power supply for flexibility. This powerful and easy-to-use program guides you through the transfer of music ♬ You load them onto your portable music player, the portable size allows it to be placed in almost any package, allowing you to play and transfer music anywhere ♬ Power supply: 2 AA batteries (not include) or USB powered