PleaseNote :Only works with Android 4.0 /5.0 /5.1 or above system phone ,does Not support iOS system,your phone must support OTG function ,and must support to connect external camera. Not all of the Android phonewith OTG function could support the external camera, the system must be allowed to connect the external camera. Warm Tips: 1.Only works with Android 4.0 system and above,doesn\'t support iOS system.2.Phone MUST support OTG function,and MUST support to connect external camera.3. the best distance is 3cm to 8cm ,if over this ,it will be not clear .Please read it carefully. How to detect whether the phone has OTG function: 1. You need to have an OTG cable. 2. Use the OTG line to connect phone with some equipment, such as keyboard, mouse, U disk, and you can use it normally, it expreed the phone has OTG function. Following model are abailable after tested. Specifications : High resolution with 1/9 CMOS camera.Built-in 6LED light (with Brightne and take Photo Control)Waterproof wire endoscope.With a 8mm camera head.Photo shooting and video recording.Camera head outer diameter: 5mmm.Resolution: 640*480 30 ftps.LED: 6White LED Bright light.Focal distance: 3cm-8cm.Waterproof level: IP67.Support systems: Android /Windows 2000 / XP / Vista / 7.Temperture: -20 ~ 100.degree Package Includes: 1 * Mini USB Endoscope1 * Small hook1 * Magnet1 * Side audition1 * fixed set1 * CD Driver1* Micro to USB line1 * Manual 5mm '