An automatic wireless pairing method includes causing a base unit to wirelessly communicate with a number of wireless peripheral devices and wirelessly receive a peripheral device data signal from each of the wireless peripheral devices, wherein the peripheral device data signal received from each of the wireless peripheral devices is based on one or more measurements made by a sensor of the wireless peripheral device, analyzing in the base unit each of the peripheral device data signals, selecting in the base unit one or more of the wireless peripheral devices based on the analyzing of the peripheral device data signals, and responsive to the selecting step, establishing or maintaining wireless communication according to the wireless communications protocol between the base unit and the selected one or more of the wireless peripheral devices and not the wireless peripheral devices other than the selected one or more of the wireless peripheral devices.