Card reader MP3 player factory 1.NO screen 2.supports ... and WAV 3.Built-in Li battery Card reader MP3 player Product DescriptionCard reader mp3 1. Without built-in flash memory, ... support Micro SD/TF card directly; 2. Card reader MP3 (supports many audio formats, Such as MP3, WMA, ... and WAV); 3. Can be used as memory card reader too; 4. With built-in polymer Lithium batteryFast delivery ...