1. Easily transfer photos and videos between (for) iPhone, iPad, Mac Android and Computers. 2. The first time you use it on your iPhone, you need to download and install the app. Y-disk It's free. 3. 360-degree rotation, stylish appearance, easy to carry. 4. Expand the storage capacity of the mobile phone at any time, without worrying about the lack of memory in your mobile phone. 5. Powerful APP function support: Can encrypt and decrypt individual files to protect privacy. 6. On the iPhone, you can open compressed file browsing and file compression.