A testing system for use in testing of wireless power transfer, the testing system comprising: a testing device having: a first wireless power receiver circuit arranged to receive inductive power from an external wireless power transmitter device; wherein the testing system further comprises: a tuning circuit for tuning the operating frequency range of the first wireless power receiver circuit to enable detection of wireless power transmitted from the external wireless power transmitter device in the first wireless power receiver circuit according to both a wireless power standard adopting a first operating frequency range and a wireless communication standard adopting a second operating frequency range being different from the first operating frequency range; and an interface operatively coupled to the first wireless power receiver circuit to provide measurement data to a host device; the host device comprising: a processing means operatively coupled to an electronic memory having stored thereon reference data related to characteristics of the wireless communication standard adopting the second frequency range; wherein the processing means is arranged to: receive the measurement data associated with the second frequency range from the interface, and determine whether a communication receiver circuit provided in an external device and arranged to communicate according to the wireless communication standard adopting the second frequency range, when arranged in operative proximity to the external wireless power transmitter device, would be disturbed or damaged by the inductive power transmitted from the external wireless power transmitter device, based on a comparison between the measurement data associated with the second frequency range and the reference data. a testing device having: a first wireless power receiver circuit arranged to receive inductive power from an external wireless power transmitter device; wherein the testing system further comprises: a tuning circuit for tuning the operating frequency range of the first wireless power receiver circuit to enable detection of wireless power transmitted from the external wireless power transmitter device in the first wireless power receiver circuit according to both a wireless power standard adopting a first operating frequency range and a wireless communication standard adopting a second operating frequency range being different from the first operating frequency range; and an interface operatively coupled to the first wireless power receiver circuit to provide measurement data to a host device; a tuning circuit for tuning the operating frequency range of the first wireless power receiver circuit to enable detection of wireless power transmitted from the external wireless power transmitter device in the first wireless power receiver circuit according to both a wireless power standard adopting a first operating frequency range and a wireless communication standard adopting a second operating frequency range being different from the first operating frequency range; and an interface operatively coupled to the first wireless power receiver circuit to provide measurement data to a host device; the host device comprising: a processing means operatively coupled to an electronic memory having stored thereon reference data related to characteristics of the wireless communication standard adopting the second frequency range; wherein the processing means is arranged to: receive the measurement data associated with the second frequency range from the interface, and determine whether a communication receiver circuit provided in an external device and arranged to communicate according to the wireless communication standard adopting the second frequency range, when arranged in operative proximity to the external wireless power transmitter device, would be disturbed or damaged by the inductive power transmitted from the external wireless power transmitter device, based on a comparison between the measurement data associated with the second frequency range and the reference data. receive the measurement data associated with the second frequency range from the interface, and determine whether a communication receiver circuit provided in an external device and arranged to communicate according to the wireless communication standard adopting the second frequency range, when arranged in operative proximity to the external wireless power transmitter device, would be disturbed or damaged by the inductive power transmitted from the external wireless power transmitter device, based on a comparison between the measurement data associated with the second frequency range and the reference data.