When a wireless communications module, such as a Bluetooth transceiver in a vehicle, is confronted with numerous devices that it can choose to connect to, one particular device of many is chosen by the Bluetooth transceiver by determining a connection priority for each available, connectible device. When the top unit is removed from the bottom unit the mobile pet bed functions similarly to a traditional pet bed. Also, the production cost of the water pail can be reduced. The dependency of removed nodes is fulfilled with inserted communication to ensure proper data consistency of the original single-threaded program. Optional conductor layers and current steering elements may be connected in series with the bistable resistive switching metal oxide layers.