Blue and white porcelain design mini portable MP3 OEM production

Features:
100% Brand New
Weight:16g
size: 45*29*12mm
Color: Green,red,black,blue,pink
Capacity:support internal memory preset(4gb/8gb/16gb)
Support external tf memory card (1gb-32gb) Just save your songs in your TF card and then get it played with this sport mp3 player.
Support MP3 WMA music format.
Be able to use directly as a USB portable disk.
can use as card reader
Built-in rechargeable li-on battery.
Automatic turn off while not under use for setting time.
Enjoy your sports and music at the same time!
Operating system: Windows 98/2000/XP/Windows 7/8/8.1/10
Output Frequency: 20Hz-20kHz
Working Temperature:-10~45 Degree
warranty: one year