The difference between soft wire and hard wire 1. Hard Cable: The hard wire can be deformed at a small angle and is suitable for vertical use. 2. Soft Cable: The flexible cord can be deformed at will, suitable for pipeline use. Tips: 1. This item only works with Android 4.0 and above 4.1,4.2 system phone, does Not support iOS system; Support Android Phone which has OTG and UVC function (At present, mainstream s of Android phones can generally be supported. Your smart phone must be Genuine which have license and support external camera, make sure that it will not shield the external camera). 2. How to detect whether the phone has OTG function: a.You need to have an OTG cable. b.Use the OTG cable to connect phone with some equipments like keyboard, mouse, U disk, and then you can use it normally, it means that the phone has OTG function. 3. This camera is near focus distance camera, the focus distance is 3cm to 8cm. if the focus distance over 8cm, it can't get the clear picture. How to use it 1. Scan the QR code on the Manual to install APP, or download link to install APP, then an icon appears on mobile desktop, click on the icon, the product is available to use. It's very easy to operate this android endoscope, just download an APP and inserted the endoscope in your device, the APP will automatic recognition it , then start to use ! (Please make sure your phone has OTG function and supports external camera.) 2.You can scan the QR code in the manual to install the APP. If the APP cannot be supported, you can scan and install the "inskam" APP. Package Includes: 1 * Mini USB Endoscope 1 * Small hook 1 * Magnet 1 * Side audition 1 * fixed set 1* Micro to USB line 1 * User's Manual 1* Type-C interface