Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering._x000D_The USB of the product is a charging function and cannot be connected to a computer for transmission. Specification: Item Type: MP3 Player Set_x000D_Material: Aluminum Alloy_x000D_Weight: Approx. 47g/ 1.7oz_x000D_Display: LCD Mini Screen_x000D_Interface: 1xMini USB, 1x3.5mm/0.1in, 1xMemory Card Slot_x000D_Storage Type: Memory card (supports a maximum extension of 32GB(not included in the list)_x000D__x000D_Battery Type: Built-in 250mAh lithium battery_x000D_Working Hours: more than 5 hours_x000D_ Features: 1Built?in memory card expansion slot, supports a maximum extension of 32GB. 2The ultra?lightweight player can clip on your clothes or other devices and stays in place for a worry?free sport. 3Long battery life, can play for more than 5 hours, no more need to worry of lack of electricity. 4With mini LCD screen display, you can clearly see the progress of the song, more convenient to use. 5Adopt high quality aluminum alloy material, more firm and durable, provide longer service life. PackageList: 1 x MP3 1 x Earphone 1 x USB Cable