Features: 1. Trendy shell, innovative lavalier design, ultra-small size. Weighs less than 30 grams and can be clipped easily. Concise, refined and stylish. 2. Supports digital music playback in various MP3 formats. 3. Can be used as a portable flash drive to store MP3 files or data. 4. Compatible with TF cards for expanded storage. 5. Functions as both an MP3 player and removable storage device. 6. Equipped with USB 1.1/2.0 interface, supports hot plug and play. 7. No external power supply required. 8. Compatible with multiple operating systems including Windows 98/SE/ME/2000/XP and above. 9. Solid-state storage with no mechanical parts, providing resistance to vibration and electromagnetic interference. 10. Built-in high-energy rechargeable lithium battery for extended standby time. 11. Compact and stylish design with precise craftsmanship, ideal as a gift. Instructions for use: 1. Turn on the MP3 switch to ON to start playback. The status light will begin to flash. 2. Press the play button to pause playback. 3. Use the volume button to adjust sound level. 4. Press forward or backward buttons to skip tracks. 5. To stop playback, first press Pause to pause the device. 6. Switch to OFF to power down completely. Precautions for use: 1. Do not charge the device via computer USB port or charger for more than 2 hours to avoid damaging the built-in lithium battery. 2. The MP3 or charger indicator may not change once fully charged, which occurs within approximately 1.5 hours. 3. Do not connect to a computer's USB port for more than 2 hours at a time. Always follow the operating system's safe removal procedure before disconnecting the device to prevent data loss or software corruption. 4. Avoid firmware updates during normal use of the device. Package Included: 1 x MP3 Music Player