Specifications: Memory card type: Micro SD Type: MP4 player Battery life: 8 hours Capacity: 32 GB Memory type: Memory card Screen size: 1.8 inches Instructions: The top left corner of the M (menu) , press to open the menu interface; The return key in the upper right corner: short press to exit the menu or volume setting, long press and long press to exit to the main menu mode; LAST button on the left: short press to switch the previous file, long press to rewind function. NEXT button on the right: short press for the next music file, long press for fast forward function. The up button: Increases the volume or moves the menu selection up; The - button below: Decreases the volume or moves the menu selection down. The middle button is the play button. Short press to pause and long press to turn off. Package list: 1 x MP4 player 1 x charging cable 1 x user manual 1 pair of headphones.