Your shopping information is collected via scanner or Scan n Go. The scanner’s memory will save all your scan data and will transmit that information to IRI via scanner base unit. The base unit connects automatically to IRI at no cost to you. You don't need to have a phone line to join or pay for the transmission. When you use Scan n Go to scan your purchases. Your shopping history is transmitted to us as soon as you finish and tap ‘Transmit’.