Item Description Features: Bluetooth Compatibility: This MP3 music player supports Bluetooth version 4.0 and audio playback in MP4 format. Compatibility: Designed to work with Windows XP, Vista, and Windows 8. Audio Recorder: Equipped with an audio recording function for convenient voice capture. Memory Card Support: Supports TF cards up to 128GB (card not included), allowing bookmarking and automatic browsing of saved locations. Portable Design: Compact and lightweight, ideal for on-the-go use, including during exercise. Parameters: Music Playback: Supports MP3, WAV, and other audio formats. Recording Support: FM and MIC recording with MP3 and WAV format support. Image Browsing: Supports BMP and JPG formats. Video Format: Supports MP4 playback (conversion required on PC using provided tool). FM Radio: Built-in FM radio functionality. Advanced Features: Includes recently read tracking, bookmarking, and auto-browse functions. Day/Night Mode: Available for comfortable viewing in different lighting conditions. System Support: Compatible with Windows XP, Vista, and Windows 8. Recording Format: MP3, WAV. Maximum Support: 128GB TF card (not included). Document Reading: Supports text file reading. Language Support: English, Chinese, French, Indonesian, Portuguese, Spanish, Italian. Bluetooth Functionality: Supports wireless receiving and sending via Bluetooth 4.0 with bidirectional transmission. Dimensions: 90.5mm x 39.5mm x 10mm. Net Weight: Approximately 31g. Packing List: 1 x MP3 Player (TF card not included) 1 x User Manual 1 x USB Cable