Features:No Computer Needed: This cassette to MP3 converter doesn't require a computer. Simply insert a USB flash drive or a USB card reader with an SD card, and you can easily convert your old tapes to MP3.Portable Design: This cassette player is compact and lightweight, allowing you to carry it with you and enjoy music anytime, anywhere.High-Quality Mechanism: This cassette to MP3 converter features a high-quality mechanism that supports old tapes, ensuring clear sound quality and long service life.Multifunctional: In addition to the conversion function, this device also supports MP3 audio format playback, and has recording and playback functions, with simple operation.Auto Reverse Playback: This cassette player features auto reverse playback, allowing for loop playback. You don't need to manually flip the tape, enjoy an uninterrupted music experience.Note: Batteries not Included Specification: Color: BlackMaterial: ABSConverter format: MP3Power supply: 2*AA Battery, any USB port power supply (5V DC adapter, USB from computer, etc)Format of USB flash: Support FAT,FAT32,exFATWorking time: 2 hours with 2*AA battery Audio channel: Stereo L/RBit Rate: 128KbpsDimensions: 11.3*8.2*3.2cmWeight: 186g (without batteries)Package size: 15*11*4.5cmPackage weight: 238gPackage list: 1* Cassette to MP3 Converter 1* Charging cable1* Earphone 1* User Manual