Lavalier design, ultra-compact and lightweight at less than 30 grams, easily clips to clothing. Sleek, minimalist, and stylish. Supports digital music playback in multiple MP3 formats. Functions as a portable USB flash drive for storing MP3 files and data. Compatible with TF cards, allowing use as a card reader. Combines MP3 player and removable storage functionality. Features USB 1.1/2.0 interface with hot-swap support for plug-and-play operation. No external power required. Compatible with various operating systems including Windows 98/SE/ME/2000/XP and later versions. Solid-state storage with no moving parts, providing resistance to shock and electromagnetic interference. Built-in high-capacity rechargeable lithium battery for extended standby time. Compact and elegant design with precise craftsmanship, ideal as a gift.Usage Instructions: 1. Turn on the MP3 player by switching to ON; playback begins and the status light flashes. 2. Press the play button to pause or resume 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.Usage Precautions: 1. Do not charge via computer USB port or charger for more than 2 hours to avoid damaging the internal lithium battery. 2. The indicator light may not change after full charge, which is normal. Charging typically completes within 1.5 hours. 3. Do not connect to a computers USB port for longer than 2 hours. Always follow the operating system's safe removal procedure before disconnecting the device to prevent data loss or software corruption. 4. Avoid firmware updates on new devices during regular use.Color: Pink, Black, Blue, Silver Package Includes: 1 x MP3 PlayerNote: 1. Due to differences in monitor displays and lighting, the actual item color may vary slightly from images. 2. Please allow 13 cm variation due to manual measurement. (1 inch = 2.54 cm)