Easy to Use: Insert the USB flash drive into the cassette player interface, convert the music from the tape to MP3 files and save it to the USB flash drive, no PC is required. Simple operation, save your precious time. The converter comes with a volume control button, you can adjust the volume during recording, and playback; Compatible with USB 2.0 and USB 3.0.USB Cassette to MP3 Converter: This Cassette Player helps effortlessly convert old tapes to MP3 files with a playback function. It works with the USB drive (FAT32 format, below to 32G), which has better performance and prevent the recorded files from skipping during playback.Auto Reverse Function: Cassette to MP3 converter, automatically switches to the other side of the tape for analogy or recording, without manual operation. Audio Rates: A44.1 and 32kHz@16-bit for MP3 making. Audio channel: L/R, bit rate: 128 Kbps. The good-quality audio output allows you to listen on earphones or other speaker systems.Auto & Manual Mode: Automatically or manually partition each song. With the auto mode, this cassette-to-MP3 converter will save each song into a separate MP3 file.Various charging & Satisfied Warranty: Powered by power port or 2X AA batteries, easy to carry everywhere. You can use headphones, earbuds, or an audio port to car speaker with the 3.5mm AUX jack, so you can enjoy MP3 music anytime. (Not included: USB flash drive and AA batteries.)