A device includes a first inductor and a second inductor. The first inductor has a first inductive coupling profile. A first circuit component is coupled to the first inductor. A second inductor has a second inductive coupling profile. A second circuit component coupled to the second inductor.

In some embodiments, system, apparatuses, and methods are provided herein useful to monitoring a product as the product leaves a facility. In some embodiments, a system comprises an RFID tag, wherein the RFID tag is associated with the product, and wherein the RFID tag includes a first chip and a second chip, a first of the two chips set to a first filter ID, an RFID tag reader, the RFID tag reader located near an exit of the facility and configured to read only RFID tags in the first filter ID, and a control circuit communicatively coupled to the RFID tag reader, the control circuit configured to receive, from the RFID tag reader based on a read of the first chip, an indication of the RFID tag, and log, based on the indication of the RFID tag, that the product has left the facility.

An electronic unit includes a communication interface, a processor, a secure element, and a sub-system. The processor is connected to the communication interface by a first bus, to the secure element by a second bus and to the sub-system. The processor is designed to operate in a first mode, in which, at the second bus, it reproduces the signals received from the communication interface at the first bus. Also disclosed is a method carried out in such an electronic unit.

A device includes a first inductor and a second inductor. The first inductor has a first inductive coupling profile. A first circuit component is coupled to the first inductor. A second inductor has a second inductive coupling profile. A second circuit component coupled to the second inductor.

A method, a system, and a computer program product for increasing sensitivity and/or readability of contactless cards. One or more signals are received from a first device. Each of the signals is responsive to one or more transmissions generated and sent to the first device by a respective receiving coil, upon being energized. A signal strength of each of the signals received from the first device is determined. A first signal in having a highest signal strength is identified based on determined signal strengths of one or more signals. A first receiving coil corresponding to the first signal is selected. The plurality of receiving coils are de-energized. The selected first receiving coil is energized and a communication with the first device is and established using the selected first receiving coil.