Item Description Features: Bluetooth Compatibility: This MP3 music player supports Bluetooth version 4.0 and audio playback in MP3, WAV, and MP4 formats. Compatibility: Designed to work with Windows XP, Vista, and Windows 8. Audio Recorder: Built-in audio recording function with FM and MIC recording support in MP3 and WAV formats. Memory Card Support: Supports up to 128GB TF card (not included) for expanded storage. Portable Design: Compact size makes it easy to carry during workouts or daily use. Music Playback: Supports MP3, WAV, and other audio formats. Image Browsing: Supports BMP and JPG image formats. Video Playback: Supports MP4 video format (requires conversion on PC). FM Radio: Built-in FM radio functionality. Recently Read Books, Bookmarking, and Auto-browse features included. Day/Night Mode available. System Support: Compatible with Windows XP, Vista, and Windows 8. Recording Format: MP3/WAV. Language Support: English, Chinese, French, Indonesian, Portuguese, Spanish, Italian. Bluetooth: Version 4.0 with bidirectional transmission support. Size: 90.5mm x 39.5mm x 10mm. Net Weight: Approximately 31g. Package Includes: 1 x MP3 Player (TF card not included), 1 x User Manual, 1 x USB Cable.