Please Note : 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 (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. 4. Please read above points carefully.Please carefully check your phone before ordering, or we'll not be responsible due to the reasons above. 5.5mm Endoscope Camera Specification High resolution with 1/9 CMOS camera. IP67 Waterproof hard cable endoscope. Camera head dimeter: 5.5 mm Photo shooting and video recording. Resolution: 640*480 LED: 6 White LED Bright light. Focal distance: 3cm-8cm. Waterproof level: IP67. Support systems: Android /Windows 2000 / XP / Vista / 7/8/9/10 Cable total length: 1-2 meters（hard wire/soft wire） Sweep the two-dimensional code on the User Manual ,Install APP,Insert camera Package Includes: Package Includes: 1 * Mini USB Endoscope 1 * Small hook 1 * Magnet 1 * Side audition 1 * fixed set 1* MicroUSB to USB adapter or TYPE-C to USBadapter 1 * User's Manual