Colour: Black feature: 1. Built-in memory card expansion slot, maximum support 32GB expansion. 2. The ultra-lightweight player can be clipped to your clothes or other equipment, keep it still, and exercise worry-free. 3. Long battery life, can play more than 5 hours, no longer have to worry about running out of battery. 4. Mini LCD screen display, you can clearly see the progress of the song, it is more convenient to use. 5. Using high-quality aluminum alloy material, it is more sturdy and durable, and has a longer service life. Specification: Project type: MP3 player set Material: aluminum alloy Weight: approx. 47g/1.7oz Display: LCD mini screen Interface: 1xMini USB, 1x3.5mm/0.1in, 1xMemory Card Slot Storage type: memory card (supports maximum expansion 32GB (not in the list) Battery type: built-in 250mAh lithium battery Working time: more than 5 hours packing list: 1 x MP3 1 headset 1 x USB data cable ►Large capacity◄ Built-in memory card expansion slot, maximum support 32GB expansion. ►Small and lightweight ◄ The ultra-light player can be clipped to your clothes or other equipment and stay in place, making exercise worry-free. ►Long battery life◄Long battery life, it can be played for more than 5 hours, and there is no need to worry about running out of battery. ►Mini LCD screen ◄ Mini LCD screen display, you can clearly see the progress of the song, it is more convenient to use. ►Sturdy and durable ◄ The use of high-quality aluminum alloy material is more sturdy and durable, and has a longer service life.