| 摘要 |
A point of sale system includes: a transceiver; an activator; and a processing unit; wherein the transceiver is configured for, upon activation of the activator, detecting radio frequency signals transmitted from at least one device; wherein the processing unit is configured for: associating a measurement value with each of the at least one device, selecting a device from the at least one device for reception of an audio stream, based on the measurement value of the device fulfilling at least one selection criteria, and operating the transceiver to transmit the audio stream to the selected device. |
