Ysimda 2in1 Encryption function OTG USB Flash Drive and Card Reader for iPhone/iPad lightning and Android phone (32GB) Space Gray Easily two-way transfer photos, audio, video, text and all major file formats between iPhone, iPad, Android phone, PCs and Mac Computers by friendly APP. Kindly be noted that you need to download the APP by scanning the D bar code shown in the product. If the webpage does not jump to the download page directly, please select  Open the page by your browser then you can find the APP download page. Open the APP you download then you can find the user manual in the setting therein. Unique integral USB A and USB Micro B connector allow you achieve both Android phone and iPhone/iPad date transfer Secured file encryption for private files. External memory expansion for iPhone/iPad; Manage all your Data directly on iOS-Device (Create, copy, move, delete, rename, and open in); Playback the videos/music directly from external memory Read your TF card or expand your storage by change big capacity TF card. 32GB TF card included.TF card reader only support FAT32 (MS-DOS FAT),please format TF card to FAT 32 (MS-DOS FAT) , otherwise TF card could be not read full capacity. Since IOS will keep update, Please follow our picture in "product images" to install APP or contact us for help if you have any problem for APP use.