Iphone power case with playing cards scanner

The iPhone power cases we usually see in daily life are normally designed for charging iPhone mobile phone. And we can process power case into one kind of barcode cards scanner for poker cheat. Both iPhone 6/6s and iPhone 7/7 plus are popular in the market.
Our power case has the same appearance as those available on the market. There seems nothing special about them, but we did hide a poker camera lens inside these iPhone power cases, turning them into barcode cards scanners.
How to use this iPhone power case playing cards scanner in poker games?
Turn the camera lens on before you play poker games. Let it towards the barcode marked cards -- the normal scanning distance between the former and the latter is 20 to 40cm. Within this distance, it can scan edge side marked cards with invisible ink barcode rapidly and precisely.
Do not worry about being running out energy, because iPhone power case is a source of power. You can customize your own iPhone mobile phone power case, no matter iPhone 6/7, iPhone 6 plus or iPhone 7 plus are available.