Reproductor MP3 portátil mini USB para estudiantes, reproductor de música MP3 deportivo, material de aprendizaje deportivo, envío de tarjeta de memoria

Portable Mini MP3 USB Player Students Sport MP3 Music Player Learning Sports Learn Supplies Send Memory Card,Features： ,Ultra thin design, concise, delicate and fashionable. ,Support digital music playback in MP3 and wma music formats. ,Built in high energy rechargeable lithium battery, full of 10 continuous music quality, perfect music enjoyment. ,Support MP3, WMA format music files. ,Fashionable and compact shape design, beautiful and exquisite workmanship, gifts ,Specification： ,Play time (hours): about 4 hours ,Standby time (hours): 10 hours ,Note: ,1.Please allow 1 2cm errors due to manual measurement, make sure that you do not mind before you order. ,2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. ,Thanks for your understandings.