1. Lavalier design, ultra-small size. It weighs less than 30 grams and can be clipped at will. Concise, refined and stylish. 2. Supports digital music playback in a variety of MP3 music formats. 3. Can be used as a portable storage device to store MP3 songs or data. 4. Compatible with TF cards for expanded storage. 5. Functions as both an MP3 player and a removable storage device. 6. Features USB 1.1/2.0 interface, supports hot swap, plug-and-play capability. 7. No external power supply required. 8. Compatible with multiple operating systems: 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. Stylish and compact design with fine 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 again to pause playback. 3. Use the volume button to adjust sound level. 4. Press forward or backward buttons to select desired tracks. 5. To stop playback, first press Pause to pause the device. 6. Switch to OFF to complete shutdown. Precautions for use: 1. Do not charge the MP3 player via computer USB port or charger for more than 2 hours, as overcharging may damage the built-in lithium battery. 2. During charging, do not rely on indicator lights for full charge detection. Charging completes within approximately 1.5 hours, and indicator status may not change afterward. 3. Do not connect to a computer’s USB port for more than 2 hours continuously. 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. Color: Pink, Black, Blue, Silver Package included: 1 x MP3 Player Note: The actual item color may vary slightly from the images shown, due to monitor display differences.