11English2.3 Connecting PC and Data TransmissionUse the supplied USB cable, connect the device to the PC to transfer data or power up the device.NOTE: USB charging only supports 500mA. If the battery power is lower than 4%, the device cannot be turnedon.NOTE: Before quitting the state of data transmission, please safety remove them from the PC, otherwise the filemay be missing.2.4 Use Micro SD cardAfter connecting the device to a PC, you will find two removable disks, the front one is thebuilt-in-memory disk, the other one is the Micro SD card disk. If there is no card plugged in, thesecond disk cannot be opened. The device supports up to 32GB Micro SD card expansion.Plug-in: insert the memory card with the side with prints facing to the front of the device. Push thememory card into the card slot until it is firmly seated. Now the device can access the data and playthe files stored on the card.Plug-out: push Micro SD card slightly inward to release it from the slot. Then gently pull it out of thecard slot.