Elefull 2 in 1 Micro USB Flash Drive 64GB Classic Style for Android Smart Phone Tablet Computer Player TV DVD Car Etc (64GB Golden) Avoid Refund: because Very Few models smarphone need turn on: OTG connection or accept Micro usb external memory device (some customers do not know how to set your smartphone OTG function, please ask your smartphone brand after-sale service center) Smart mobile phone Samsung Galaxy S4 S5 S6 S7 HTC Nokia Moto Huawei Etc,must with USB port And Micro usb Port Android window linux MAC,Computer laptop smartphone tablet can not work with Iphone Ipad , very a few models smartphone do not suppot external memory more than 16GB or 32GB or 64GB, please make sure again Packing: OTG USB flash drive warranty and friendly customer service