Item Description Features: Bluetooth Compatibility: This MP3 music player supports Bluetooth version 4.0 and MP4 format audio playback. Compatibility: Designed to work with Windows XP, Vista, and Windows 8. Audio Recorder: Supports audio recording function for convenient voice capture. Memory Card Support: Includes TF card slot for expanded storage; allows bookmarking and automatic browsing of content. Portable Design: Compact size makes it easy to carry during exercise or travel. Parameters: Music Playback: Supports MP3, WAV formats. Recording Support: FM and MIC recording in MP3 and WAV formats. Image Browsing: Supports BMP and JPG formats. Video Playback: Supports MP4 format (conversion required via PC software). FM Radio: Built-in FM radio with tuning support. Advanced Features: Recently read tracking, bookmarking, auto-browse functionality. Day/Night Mode: Available for user convenience. System Requirements: Compatible with Windows XP, Vista, and Windows 8. Recording Format: MP3, WAV. Maximum Supported Capacity: 128GB TF card (not included). Text Reading: Supports document reading. Language Support: English, Chinese, French, Indonesian, Portuguese, Spanish, Italian. Bluetooth Functionality: Supports wireless receiving and sending via Bluetooth 4.0 with bidirectional transmission. Device 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