Item Description Features: Bluetooth Compatibility: This MP3 music player supports Bluetooth version 4.0 and audio playback in MP4 format. Compatibility: Designed for use with Windows XP, Vista, and Windows 8. Audio Recorder: Supports audio recording function for convenient voice capture. Memory Card Support: Includes TF card slot with support for up to 128GB (card not included), allowing bookmarking and automatic browsing of saved locations. Portable Design: Compact size makes it easy to carry during workouts or daily use. Parameters: Music Playback: Supports MP3, WAV formats. Recording: FM and MIC recording supported in MP3 and WAV formats. Image Browsing: Supports BMP and JPG formats. Video Playback: Supports MP4 format (must be converted via PC software). FM Radio: Built-in FM radio functionality. Advanced Features: Recently read tracking, bookmarking, auto-browse, day/night mode. System Support: Compatible with Windows XP, Vista, and Windows 8. Recording Formats: MP3, WAV. Maximum TF Card Support: 128GB (card not included). Text Reading: Supports document viewing. 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. Packing List: 1 x MP3 Player (TF card not included), 1 x User Manual, 1 x USB Cable