A touch sensing assembly includes a touch sensing layer that is configured to couple to an interface. The interface is configured to receive contact with skin of a user on a first surface. A first touch sensing layer is coupled to interface. The first touch sensing layer includes a plurality of touch sensors and a plurality of electrodes. The touch sensors are of a first touch sensing type, configured to detect proximity of the user's skin to the interface. The electrodes provide a plurality of electrical signals corresponding to the proximity of the user's skin to the interface.