Product information:

Color: mainy black.
Dimensions: 15.5*11.5*4.5cm
Shell material: durable hard plastic.
Convert format: MP3.
Auto channel: Stereo L/R.
Bit rate: 128Kbps.
Powered by 2 * AA batteries (not included), or the included USB cable to connect with computer or 5V DC power adapter).
Working time: about 1 hour with 2pcs AA batteries.

Packing list:

1 * EC007C Portable USB Cassette Tape to MP3 Converter Music Player (Black)
1 * USB Cable
1 * 3.5mm Earphones

1 * English User Manual