A pair of communication devices are capable of communication by means of a communication link, such as a Bluetooth or WLAN link. The device has an RFID tag containing data sufficient to identify feedback to be provided to a user. The device has an RFID reading device able to read feedback data from the tag. The device is operable to provide feedback, which may be audible, visible or tactile, to a user, in accordance with feedback data read by the device from the tag. Establishment of the communication link is not required before feedback can commence and thus, feedback is not delayed by the procedures required to establish the link.

 
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> Method and apparatus for optimized battery life and authentication in contactless technology

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