Here is the points you need to know before ordering
1,About the compatible Android smartphone models:
A,Only works with Android 4.0 system and 4.0 above, does not support IOS system.
B,Your Android Phone should must support OTG function and external camera(Not a sinlge one can be omitted).
C,Doogee, Huawei, HTC, Coolpad, BBK, VIVO, Lenovo and other"made in China" brand which was shielded the exteernal camera.Please check your phone carefully
D,Working with the smartphone is just a part of the function,you can still use it with the PC or laptop if your smartphone doesn\'t compatible with it.
E,Leave messages to us if you are not sure about it.
2,About the resolution:
A,The lens can not auto-focusing.
B,The best resolution distance is 3-6cm,the resolution reduces when the distance beyond or closer(view the following diagrams to learn more)