Did I programmed 3 NFC chips, one for home, one for the car and one for the office. Easy it can not be done. I put my cell phone in the car mount, thanks to NFC wireless turned off, and a Bluetooth. In the office of Bluetooth, sound dumb. And back home, wireless on, tone and all is well. Do not regret the purchase. Very satisfied. The only drawback, the phone must be unlocked so that the NFC chip can be read.