Features BT Compatibility: This MP3 music player supports Bluetooth version 4.0 and audio playback in MP4 format. Compatibility: This Bluetooth-enabled music player is compatible with Windows XP, Vista, and Windows 8. Audio Recorder: This MP3 player supports external audio recording, allowing you to use it as a recording device. Memory Card Function: This MP4 voice recorder includes memory card support, enabling bookmarking of read sections and automatic browsing. Portable Design: Compact size makes this music player convenient to carry, ideal for use during exercise or on the go. Specifications - Music Playback: Supports MP3, WAV, and other audio formats - Recording Support: FM and MIC recording, formats supported: MP3, WAV - Image Browsing: Supports BMP and JPG formats - Video Format Support: MP4 format (requires conversion on PC using appropriate software) - FM Radio Supported - Advanced Features: Includes recently read list, bookmarking, and auto-browse functions - Day/Night Mode Available - System Compatibility: Windows XP, Vista, Windows 8 - Recording Formats: MP3, WAV - Maximum Support: Up to 128GB TF card (optional) - Supports document text reading - Language Support: English, Chinese, French, Indonesian, Portuguese, Spanish, Italian - Supports Bluetooth receiving and sending - Bluetooth Version: 4.0 with bidirectional transmission - Dimensions: 90.5mm x 39.5mm x 10mm - Net Weight: Approximately 31g Package Included 1 x MP3 Player (earphones not included) 1 x User Manual 1 x USB Cable