The portable airbag scale is a scale that measures the weight of a load based upon a difference between measured air pressure in an inflatable bladder, the difference being measured between a first state, where the load is not positioned on the inflatable bladder, and a second state, in which the load is supported on the inflatable bladder. A vibrator supply cable connects the implanted energy-receiving unit to the implanted vibrator unit. The rule selection parameter represents the spectral parameter vector of the source speaker. This prevents both ventricular leads from each independently initiating a dual PVC response, based on the same PVC event.