A very high efficient product named Shuffle Mp3 Player With Memory Slot which can be easily more relied and very frequently used by your customers in various ways that includes listening to music due to its wide varieties of features like aluminum shell, music play from micro SD/TF card (no internal memory), USB cable, earphone, easy mini clip on back, on off slider button, built-in rechargeable battery, usb connect to PC for charging and file transfer, U-disk storage function, no build-in memory, which makes your company name and brand, a well renowned name among your customers and in the market.