Introduction: With this cassette to MP3 converter, you can easily convert your old tape to MP3 without a computer. you just need to plug USB Flash disk (or USB card reader with card) on then press "record" button And the device will convert all of the music on tape to your USB Flash disk in MP3 format automatically. You can also playback on it, or just put USB Flash to other place (computer.portable speaker. or transfer for your mobile phone, , etc.) to play the recorded music. : Conventfomat: Mp3 Power supply: 2xAA battery or USB port power(USB5V/0.5A), And DC3V USB flash drive: Supports FAT.FAT32.exFAT formats, not NTFS.better capacity is 32GB or less Audio channel: StereoL/R Bit Rate: 128Kbps Material: plastic colour: white Package Contents: 1 x Cassette to MP3 Converter(label random, Cannot be chosen the specific label.) 1 x USB to 3.5mm cable for power 1 x English instructions Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.