This USB Cassette Player enables you to convert old tape to MP3 format or turn to CD. And with 3.5mm AUX port, you can output audio to headset, speaker, etc. Besides, it can be powered by 2 AA batteries ( Not included ) or USB cable. Feature:  Convert Tape to MP3/CD You can convert old cassettes to MP3 format or turn to CD so as to make full use of your cassette.                                  Portable Design It is small and lightweight, take it with you anytime, anywhere. Audio Output Port Equip with 3.5mm AUX jack, you can output audio to headset, speaker, etc. Plug N Play No drivers required, easy to use. Easy to Use It comes with Converter software and a user manual to make conversion quick and easy. Power Supply It can be powered by 2 pieces of AA batteries ( Not included ) or USB cable. Specification: OS: Windows 2000, XP, Vista, 7, 8, 10 Power supply: 2* AA batteries ( Not included )/ USB cable Item weight: 173g/ 6.1oz Package size: 15.3* 11* 4cm/ 6.02* 4.33* 1.57in Package weight: 255g/ 8.99oz Packing list: 1 * USB Cassette Player 1 * USB cable 1 * Software CD 1 * 3.5mm to RCA Audio Cable 1 * User manual