This is a white Cashwrap case by Incipio for iPhone 4/4s. It gives your phone NFC payment capability (Apple Pay, Google Wallet, Softcard, LoopPay, etc). This is where you just tap your phone at the register to pay for something.

This case is brand new and unopened. I know Verizon and AT&T accept NFC payments, but am not sure about other carriers. You should call your provider first and make sure that you can use NFC payment before buying this.

If you have any questions, email me.