For the best performance, we recommend placing the Wave Phone Tap Card outside your iPhone case. NFC (Near Field Communication) technology works most effectively when there is minimal interference between the card and the phone.
Placing the card inside the case may reduce its ability to transmit the signal, especially if your case is thick or made of certain materials like metal, which can block or weaken the NFC signal.
To ensure smooth and reliable tapping, keep the Wave Phone Tap Card on the outside of your phone case.