This is a case for nfc stickers. Doesn't block the communication of the sticker and the model has a small 0.2 mm hole in it to fit the 1-inch diameter stickers. Two models are included. One with a Bluetooth symbol that I stacked onto the normal case to receive a two-color print, and a blank one with no symbol. I use it in my car so that when I scan it, it connects my phone to Bluetooth.