Iphone 4 is not only smart in its outlook, but also the most advanced in its scanning performance. An I phone with a secret camera inside is almost a must in the scanning system. The distance between the barcode marked cards and the scanning camera are as following:
10-20cm, 20-30cm, 25-35cm, 30-40cm
If you have any special requirement on your i phone 4 scanning camera, you can just contact us and we will customize them for you.
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