... memory card 2)1.8", loud speaker 3)easy to change battery 4)good price,little higher than a mp3 ... support micro SD card to expand the memory.4.3 times QC process, we can ensure 100% are ... materials, such as fake memory, fake capacity of the battery,low quality chips, to drop the cost. So please ... with our customers and got a authorization from our customers.3. Generally we will use DHL, UPS, EMS, FEDEX, ...